Objective Three: The Interdependence of Organisms and the Environment (Biology)
Form 2, Chap 04: Interdependence Among Living Organisms and the Environment (6)
Transcript of Form 2, Chap 04: Interdependence Among Living Organisms and the Environment (6)
Chapter4.6
The Role of Humans in Maintaining the Balance of Nature
Pollution
Environmentalissues
Deforestation
The thinning of theozone layer
Greenhouseeffect
Acid rain
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
Chapter4.6 The Role of Humans in Maintaining The Balance of Nature
The greenhouse effect occurs because a layer of carbon dioxide in theatmosphere trap a portion of heat in the air from escaping to the outer space
Greenhouse effect
The accumulation of heat in the air raises the Earth’s temperature. This is alsoknown as global warming
The major cause of the greenhouse effect is deforestation
Global warming will causes the melting of icebergs and ice glaciers, resulting inthe rising of sea levels
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
Chapter4.6 The Role of Humans in Maintaining The Balance of Nature
The ozone layer in the atmosphere protect the Earth from the ultraviolet rays ofthe Sun
The thinning of the ozone layer
The ozone layer will absorb the ultraviolet rays before they reach the Earth
Use of chlorofluorocarbons (CFCs) in the manufacture of refrigerators andair conditioners has resulted in the depletion of the ozone layer
As a result, the ozone layer become thinned
The ultraviolet rays that reach the Earth will harms human health by causing(a) skin cancer(b) cataracts
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
Chapter4.6 The Role of Humans in Maintaining The Balance of Nature
Deforestation is the result of the removal of trees without sufficient reforestation
Deforestation
Cutting sown trees in the forest for farming, housing and building factories,results in the loss of biodiversity and destruction of wildlife
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
Chapter4.6 The Role of Humans in Maintaining The Balance of Nature
When sulphur dioxide and nitrogen dioxide dissolve in rain water, acid rain will beformed
Acid rain
Sulphur dioxide and nitrogen dioxide are gasses released from vehicles andfactories
Acid rain can(a) destroy the habitats and make it unsuitable for organisms to live(b) destroy the aquatic life in lake(c) destroy the building
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
Chapter4.6 The Role of Humans in Maintaining The Balance of Nature
Waste materials from residential district and industrial residential which dumpedin the river and sea pollute the water
Pollution
Effects of water pollution(a) The chemicals that added into the lake can decreases the amount of
oxygen that the aquatic organisms need to live(b) The plastic that dumped in the sea can kills the dolphin
Water pollution
Air pollution Land pollution
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
Chapter4.6 The Role of Humans in Maintaining The Balance of Nature
Exhausts from all forms of transportation and fuel combustion in industrialdistrict and power plants pollute the air
Pollution
Effects of air pollution(a) Lung disease(b) Asthma(c) Emphysema(d) Acid rain
Water pollution
Air pollution
Land pollution
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
Chapter4.6 The Role of Humans in Maintaining The Balance of Nature
Dumping of waste, spillage of chemicals and acids rain pollute the land
Pollution
Effects of land pollution(a) Flash floods and landslides
Water pollution Air pollution
Land pollution
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment
Steps to be taken to reduce the environmental pollution(a) Car pool(b) Bring your own shopping bag instead of using the shopping mal
plastic(c) Limit the use of chlorofluorocarbon (CFCs)(d) Avoid open-air burning(e) Do not litter(f) Educate the public on the important of recycle(g) Tighten laws regarding the spillage of chemicals from factories
Q.R.4.6 Quick Refresh
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Chapter 4 : Interdependence Among Living Organisms and the Environment
Smart Review
Prey-predator, symbiosis and competition are three different types of interaction between living organisms
Commensalism, parasitism and mutualism are three types of symbiotic relationship
A pyramid of numbers shows the number of organisms at each trophic level
Photosynthesis is a process of manufacturing food, carried out by green plants
Conserving and preserving living organisms are important to prevent extinction of plants and animals species
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© Amazing Tunas Enterprise (001573407-U)TRG – Science Form 2
Chapter 4 : Interdependence Among Living Organisms and the Environment