Proficiency English: Language and Composition Bk. 1 (Proficiency English)
Proficiency Review #1. What is the best way to determine how two people are most closely related?...
Transcript of Proficiency Review #1. What is the best way to determine how two people are most closely related?...
![Page 1: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/1.jpg)
Proficiency Review #1
![Page 2: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/2.jpg)
What is the best way to determine how two people are most closely related?
• DNA
![Page 3: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/3.jpg)
What best measures a liquid?
• Graduated Cylinder
![Page 4: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/4.jpg)
A hydro-electric generator converts mechanical energy into electrical energy.
![Page 5: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/5.jpg)
What is the best way to reduce the amount of waste in a landfill?
• Recycle
![Page 6: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/6.jpg)
What is the best way to predict the outcome of an experiment?
• Make a HYPOTHESIS (educated guess!)
![Page 7: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/7.jpg)
Boiling water has the most kinetic energy!
![Page 8: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/8.jpg)
How would you know that a prehistoric shark (Megladon) and a great white shark are related?
• Comparison of skeletal structure
![Page 9: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/9.jpg)
Why is the Green House Effect called the Green House Effect?
• Because it keeps in heat and gases (carbon dioxide and water vapor) just like a green house does.
![Page 10: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/10.jpg)
The gas involved in the nuclear reaction of stars (nuclear fusion)…
• HYDROGEN
![Page 11: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/11.jpg)
Nuclear waste is the most hazardous to store.
![Page 12: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/12.jpg)
Levels of Organization from smallest to largest:
• Atom• Molecule• Cell• Tissue• Organ• Organ system • Organism
![Page 13: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/13.jpg)
How do you increase the rate of a reaction?
• Heat it!• Grind it!• Stir it!
![Page 14: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/14.jpg)
Covalent bonds share electrons!
• Two or more NON-METALS!
![Page 15: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/15.jpg)
The molecule produced during photosynthesis…
• GLUCOSE
![Page 16: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/16.jpg)
Electrical impulses travel in…
• NERVE CELLS
![Page 17: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/17.jpg)
What changes scientific findings?
• NEW DATA
![Page 18: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/18.jpg)
In order of increasing molecular attraction…
• Gas—molecules are not attracted. They are in rapid, random, motion.
• Liquids—molecules are attracted to the point they flow past one another.
• Solids—molecules are very attracted. They vibrate in a set pattern.
![Page 19: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/19.jpg)
Energy from the sun is needed during…
• EVAPORATION
![Page 20: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/20.jpg)
What happens if Greenhouse gases decrease?
• The Earth’s temperature would decrease (it would become colder).
![Page 21: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/21.jpg)
Oceanic plates subduct or go under the continental plate.
• Where two plates meet is called CONVERGENCE.
![Page 22: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/22.jpg)
What force stops a rolling ball?
• FRICTION
![Page 23: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/23.jpg)
Greater variation comes from plants that cross-polinate.
![Page 24: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/24.jpg)
The moving of plates is called plate tectonics.
![Page 25: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/25.jpg)
The Universe is expanding!
![Page 26: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/26.jpg)
Scientific advances are influenced by the costs and benefits of those advances.
• Making unsubstantiated claims about results is NOT part of the scientific process…you can not make things up and call them true as part of the scientific process!
![Page 27: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/27.jpg)
Radioactive decay occurs in certain elements at a constant rate.
• Carbon dating is how we know how old something is.
![Page 28: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/28.jpg)
What is the primary energy source behind the water cycle?
• The Sun’s electromagnetic radiation.• The Sun’s energy is used more during
EVAPORATION in the water cycle.
![Page 29: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/29.jpg)
Geothermal, wind, and solar energy are constantly being replenished.
• THEY ARE RENEWABLE ENERGY SOURCES!
![Page 30: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/30.jpg)
Cyanobacteria affected the Earth’s atmosphere by gradually adding oxygen to the atmosphere…
• This led to life on our planet!
![Page 31: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/31.jpg)
The two most abundant greenhouse gases in the Earth’s atmosphere are…
• CARBON DIOXIDE• WATER VAPOR
![Page 32: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/32.jpg)
The force that dominates the formation of a star is…GRAVITY
![Page 33: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/33.jpg)
The CORIOLIS EFFECT is the movement of fluids (gases and liquids) on our planet.
• *from west to east in the Northern hemisphere!
![Page 34: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/34.jpg)
• The rate of fusion of high-mass stars greatly exceeds that of low-mass stars. As a result, the high-mass stars spend less time on the main sequence than low-mass stars.
![Page 35: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/35.jpg)
On the periodic table, Groups or families (columns) have similar properties.
• Same number of valance electrons…
![Page 36: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/36.jpg)
Ionic bonds are between a metal and a non-metal, or a metal and a poly-atomic.
• In Ionic bonds, electrons are given from the metal to the non-metal.
![Page 37: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/37.jpg)
Valence electrons are the outer most electrons that participate in chemical bonding.
electron
neutron
proton
![Page 38: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/38.jpg)
A catalyst increases the rate of a reaction.
• Enzymes are catalyst in your body.
![Page 39: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/39.jpg)
Endothermic reactions take in energy—get COLD!
![Page 40: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/40.jpg)
Exothermic reactions give off energy—get HOT!
![Page 41: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/41.jpg)
With any chemical equation, the mass of the reactants is equal to the mass of the products.
• Same goes for the number and type of atoms!
![Page 42: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/42.jpg)
Gaining electrons gives an ion a negative charge.
![Page 43: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/43.jpg)
Losing an electron gives an ion a positive charge.
![Page 44: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/44.jpg)
A generator is an example of electromagnetic induction.
![Page 45: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/45.jpg)
If electromagnetic waves reach Earth from distant parts of the universe, you can infer that
these waves can travel without a medium.
• Sound waves can not travel through space because sound waves need a medium in which to travel!
![Page 46: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/46.jpg)
Objects with the greatest gravitational forces are bigger, and closer together!
![Page 47: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/47.jpg)
A toy car with initial kinetic energy rolls to a stop along a flat track. Because of friction, some of the kinetic energy was transferred to the
track as thermal energy (HEAT) .
![Page 48: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/48.jpg)
A thermometer measures…
• Average kinetic motion.
![Page 49: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/49.jpg)
What role do electrical generators or batteries have in circuits?
• They are the source of the electrons that move through the circuit.
![Page 50: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/50.jpg)
What molecule allows hereditary information to be passed from generation to generation?
• DNA
![Page 51: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/51.jpg)
Which cellular organelle contains DNA and controls the functions of the cell?
• The NUCLEUS
![Page 52: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/52.jpg)
Gametes = sex cells
• Egg or sperm• They have ½ the number of chromosomes as
the parent cells.
![Page 53: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/53.jpg)
Somatic cells = body cells
![Page 54: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/54.jpg)
Ribosomes are the site of protein synthesis.
![Page 55: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/55.jpg)
Transcription is when a strand of DNA is matched to a strand of messenger RNA.
• A-----T (u)• T-----A• C-----G• G-----C
![Page 56: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/56.jpg)
Mitosis cell division is exponential.
• 1-----2-----4-----8-----16-----32-----64…
![Page 57: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/57.jpg)
Cell division by mitosis is growth.
![Page 58: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/58.jpg)
Greatest variation in the offspring comes from …
• A heterozygous crossed with another heterozygous individual.
![Page 59: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/59.jpg)
Osmosis is the movement of water from an area of higher concentration to lower
concentration.
![Page 60: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/60.jpg)
Prokaryotic cells—simple, no nucleus.
![Page 61: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/61.jpg)
Eukaryotic cells—more complex, have a nucleus.
![Page 62: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/62.jpg)
Top consumers in a food web have less energy available to them, so they have to store energy in the form of fats.
![Page 63: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/63.jpg)
The two most important factors in determining what type of vegetation is present in an ecosystem are…
• WATER and TEMPERATURE
![Page 64: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/64.jpg)
Abiotic energy source = the SUN!
• Abiotic factors in an ecosystem are not living…soil, temperature, water, climate, etc.
![Page 65: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/65.jpg)
If different species share a common ancestor, they have similar DNA sequences.
![Page 66: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/66.jpg)
The theory of evolution best explains the vast diversity of life on our planet.
![Page 67: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/67.jpg)
The best evidence that all modern breeds of dogs are members of the
same species, but they exhibit a wide range of physical
characteristics, results in the fact that some modern dog breeds are poorly adapted to living in natural
environments.
![Page 68: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/68.jpg)
A population that is most fit, would produce the most viable offspring.
![Page 69: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/69.jpg)
Primary succession is where plants begin to grow after a natural disaster.
![Page 70: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/70.jpg)
A benefit of artificial selection is to selectively breed organisms to
provide farmers with higher yielding crops and possible more profits.
![Page 71: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/71.jpg)
A parasite in the small intestine will interfere with nutrient absorption.
![Page 72: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/72.jpg)
Plant cells have a rigid cell wall, and animal cells do not. Plant cells contain chloroplast, animal cells do not.
![Page 73: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/73.jpg)
Skin cancer cannot be passed to children, because it occurs in the somatic
cells of the body. It is not inherited.
![Page 74: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/74.jpg)
What happens to particles of a gas as it changes phase into a liquid?
• They slow down and become closer together because energy is being removed. (CONDENSATION)
![Page 75: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/75.jpg)
The moon has less mass, so gravitational force is less on the Moon’s surface.
• *That is also why astronauts weigh less on the moon!
![Page 76: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/76.jpg)
The Big Bang theory helps scientists understand the origins of the universe, and how the planets
in our solar system are formed.
![Page 77: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/77.jpg)
A non-sustainable environmental practice is the burning of fossil fuels.
![Page 78: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/78.jpg)
During it’s lifetime, a star’s brightness fluctuates.
• Stars are classified by their color.
![Page 79: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/79.jpg)
The flow of air around a heater is convection.
• Hot air rises, cold air sinks.• Heat always flows from hot to cold.
![Page 80: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/80.jpg)
An Earthquake is most likely to occur where two plates meet.
![Page 81: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/81.jpg)
Sound waves cannot travel in the vacuum of space. Light waves can travel through space.
![Page 82: Proficiency Review #1. What is the best way to determine how two people are most closely related? DNA.](https://reader035.fdocuments.us/reader035/viewer/2022070410/56649ea95503460f94bae482/html5/thumbnails/82.jpg)
The denser the medium, the faster sound travels through it (particles are closest together). So…sound travels
fastest through a solid like land.