the cultivation of a single crop

[image]

 any natural resource (as wood or solar energy) that can be replenished naturally with the passage of time

[image]

A natural resource such as coal, gas, or oil that, once consumed, cannot be replaced

[image]

meets the needs of the present without compromising the ability of future generations to meet their own needs

the wearing away of surface soil by water and wind

[image]

In dry climates, farming and overgrazing change farmland into desserts, a process called _____________.

[image]

loss of forests

[image]

harmful material that can enter the biosphere 

[image]

biological magnification

(noun)

pesticides or heavy metals move up the food chain, work their way into rivers or lakes, and are eaten by aquatic organisms such as fish, which in turn are eaten by large birds, animals or humans

[image]

smog

(noun)

a mixture of chemicals formed by emissions from cars and industry

[image]

acid rain

Burning fossil fuels releases compounds that join with water in air, forming __________.

[image]

biodiversity

(noun)

the variety of life in the biosphere

[image]

the variety of habitats, communities, and ecological processes in the biosphere

[image]

the number of different species in an area in the biosphere

[image]

the total of all genetic information carried in living things

[image]

human development spits ecosystems into pieces

[image]

a place where a significant numbers of species & habitats are in immediate danger of extension

[image]

The total area of functioning land and water ecosystems needed both to provide the resources an individual or population uses and to absorb and make harmless the wastes that individual or population generates.

[image]

Between 20 - 50 kilomenters above Earth's surface.

[image]

the farming of aquatic animals

[image]

increase in average temperature

[image]