KEYSTONE SPECIES - LEACHINGCrystal SuggsDr. SimpsonAPES17 April 2012

KEYSTONE SPECIES A species that is far more important in its

community than its relative abundance might suggest

APPLICATION A sea otter is a keystone species

KINETIC ENERGY The energy of motion APPLICATION

Kinetic energy is used when riding a bike up a hill

KYOTO PROTOCOL An international agreement to reduce global

emissions of greenhouse gases from all industrialized countries to 5.2 percent below their 1990 levels by 2012.

APPLICATION Methane and carbon are greenhouse gases that

are mentioned in the Kyoto Protocol.

LACEY ACT A U.S. act that prohibits interstate shipping of

an illegally harvested plants and animals APPLICATION

The Lacey Act protects forests.

LATENT HEAT RELEASE The release of energy when water vapor in

the atmosphere condenses into liquid water. APPLICATION

This is important because when the water vapor in the atmosphere condenses, the air will become warmer and this warm air will rise

LAW OF CONSERVATION OF MATTER A law of nature stating that matter cannot be

created or destroyed. APPLICATION

When paper is burned, it may seem to vanish but no atoms are lost; the carbon and hydrogen that make up the paper combine with oxygen in the air to produce carbon dioxide and water vapor.

LD50 The lethal dose of a chemical that kills 50

percent of the individuals in a dose-response study.

APPLICATION This helps compare the harmful effects of

different chemicals

LEACH FIELD A component of a septic system, make up of

underground pipes laid out below the surface of the ground.

APPLICATION The pipes in the leach field contain small

perforations so the water can slowly seep out and spread.

LEACHATE Liquid that contains elevate levels of

pollutants as a result of having passed through municipal solid waste (MSW) or contaminated soil.

APPLICATION Leachate contains toxic chemicals that harm the

environment.

LEACHING The transportation of dissolved molecules

through the soil via groundwater. APPLICATION

The leached nitrates eventually settle in the bottom sediments of oceans, lakes, and swamps.