Human Impact on the Environment

Front

Where can wastes produced by agriculture, households, industry, mining, and other human activities end up?

Back

All of these choices

Front

About 97% of the water on Earth is ___________________.

Back

salt water

Front

Increase in which gas is primarily responsible for increased global warming? Options: Carbon dioxide, Water vapor, Methane, Nitric oxides

Back

Carbon dioxide

Front

Largest number of individuals of a population that the environment can support.

Back

carrying capacity

Front

What is the most dramatic result of deforestation?

Back

loss of habitat for approximately 70% of the world's species

Front

Which has the least negative impact on wildlife habitat? Options: agriculture, development, deforestation, recreation

Back

recreation

Front

Less rainfall in an area and higher temperatures could lead to:

Back

desertification

Front

Reasons deforestation occurs: clearing land for agriculture, ranching, and mining, just wanting to destroy things, Population moving from rural areas to cities, to make room for infrastructure.

Back

clearing land for agriculture, ranching, and mining

Front

Why is coal considered a nonrenewable resource?

Back

Once coal is used up, it can never be replaced.

Front

Fossil fuels are an important natural resource used by society. Which of the following best describes fossil fuels?

Back

They are organic fuels derived from ancient plants and animals.