Exam 38: Human Influences on the Living World

Air and water pollution result mainly from:

In which way can natural habitats be adversely affected by human influences?

Which one of the following helps make ecosystems more stable?

To be a viable alternative,nuclear power facilities must have:

Pollution taxes often take the form of ____________________.

All of the following are taken into consideration when calculating ecological footprint except:

A 1% drop in atmospheric ozone is correlated with a _________ increase in the number of skin cancer patients.

Acid precipitation is due to the addition of __________ to the atmosphere.

Which city is considered a brown-air city because the pollutants in the air undergo chemical reactions in the sunlight to form smog?

Agricultural chemicals,such as DDT,are so damaging to predator populations because:

List five ways that you plan to alter your behavior to help solve environmental problems.

The wealthiest 20% of the world's population consumes _________% of its resources.

Among the non-renewable resources we must protect is:

Our country has lost ____________ of its topsoil since 1950.

The greenhouse effect is due to high levels of which gas in the environment?

Acid precipitation kills forest trees because it:

Which of the following is the single most important cause of extinction?

Which factor is contributing to the worldwide decline in amphibians?

A key element in the world's population growth is its uneven distribution among countries.

The kinetic energy in wind can be harnessed to produce electricity.