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16 Cards in this Set

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  • Back

biodiversity

the degree of variation of animal and plant species on Earth

interdependent

dependent on each other

deforestation

the cutting down of trees in a large area or the destruction of forests by people

aware

having knowledge or experience of a particular thing

extinct

no longer exsisting or living

to rise

to go up

to reduce

to make smaller

environment

the air, water and land in or on which people, animals and plants live

valuable

helpful and important

to melt

to turn from ice and snow into water

fuel

a substance which is used to provide heat or power, usually by being burned

to increase

to become larger

acid rain

a mixture of rain or snow with toxic gases

global warming

a gradual rise in the temperature of the Earth

the greenhouse effect

a phenomenon, caused by gases in the atmosphere such as carbon dioxide, water vapor, and methane that allow the Sun rays to pass through the planet's surface but hold in some of the heat

one's carbon footprint

the amount of carbon dioxide released into the atmosphere from one's normal daily activities: using energy in the home, driving and air travel