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FMS 6th Ch 3


weather The short term changes in the air for a given place and time.
climate A regions' average weather conditions over a long period.
prevailing winds Winds that blow in the same direction over large areas of Earth.
ocean currents Large streams of surface seawater--move heat around Earth.
front The place where two air masses of different temperatures or moisture content meet.
monsoons Seasonal winds that bring either dry or moist air.
savannas Areas of tall grasses and scattered trees and shrubs.
steppes Semidry grasslands or prairies.
permafrost Permanently frozen layers of soil.
environment Surroundings
ecosystem A group of plants and animals that depend on each other for survival and the environment in which they live.
habitat The place where a plant or animal lives.
extinct Die out.
humus Decayed plant or animal matter.
desertification The spread of desertlike conditions.
natural resources Any material in nature that people use and value.
renewable resources Resources Earth replaces naturally.
deforestation The clearing of trees.
fossil fuels Nonrenewable resources that formed from the remains of ancient plants and animals.
hydroelectric power The production of electricity from waterpower.
Created by: Stoll FMS