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

How does eutrophication from fertilizer runoff affect other organisms in water?

Back

Oxygen is used up as algae is decomposed, reducing the amount available to other organisms.

Front

Which historical event most likely triggered the largest increase in the human population? Options: the Black Death plague, the domestication of wheat crops, the fall of the Roman Empire, the Industrial Revolution.

Back

the Industrial Revolution, which began in the late 1700s

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

What are some reasons deforestation occurs?

Back

clearing land for agriculture, ranching, and mining