Human Impacts

Water is 

• renewable
• nonrenewable

Are exhaustible and are extracted faster than the rate at which they formed

• Renewable
• nonrenewable

According to this image, in which continent does the ecological footprint exceed capacity by the largest amount?

• Europe

• North America

• South America

• Australia

Which gas emission from cars causes the formation of acid rain and photochemical smog?

• carbon dioxide

• nitrogen oxide

• oxygen

• ozone

Precipitation that has a lower pH than that of normal rainwater is

• precipitation

• acid precipitaton

• base precipitation

• pH precipitation

A group of compounds that are able to trap heat in the atmosphere, keeping the Earth's surface warmer than it would be if they were not present.

• CO2 emissions

• greenhouse gases

• climate change

What is the greenhouse effect?

• warming of the earth due to gases in our atmosphere.
• cooling of the earth due to gases in our atmosphere

We need the natural greenhouse effect for Earth to be habitable.

• True
• False

The enhanced greenhouse effect leads to global warming.

• True
• False

Concentration of toxins in an organism as a result of ingesting other plants/animals in which the toxins are widely distributed

• biomagnification
• point-source pollution
• artificial eutrofication
• consumable pollution