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Exam 15: Environmental Health

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Question 1

Multiple Choice

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What is the process by which living organisms break down organic substances?

A) biodegradation
B) recycling
C) e-waste
D) biomagnification

E) A) and B)
F) A) and C)

Correct Answer

verified

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Question 2

Multiple Choice

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Which element has created unsafe levels in the blood of 500,000 children under age 6 according to the CDC?

A) asbestos
B) lead
C) pesticides
D) mercury

E) B) and C)
F) A) and B)

Correct Answer

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B

Question 3

Essay

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Describe various types of indoor air pollution and how it affects humans.

Per capita,Americans are the biggest energy consumers in the world.

The greenhouse effect is an increase in the earth's atmospheric temperature when averaged across seasons and geographical regions.

What is the term for the fragile,invisible layer of the atmosphere about 10-30 miles above the earth's surface that shields the planet from the sun's hazardous ultraviolet rays?

What naturally occurring metal slows fetal and child development and causes irreversible deficits in brain function?

The term "smog" was first used in the early 1900s in London to describe the combination of smoke and fog.

The field of environmental health grew out of efforts to control communicable diseases.

Describe "alternative fuels" and their part in the future.

What element comes in different forms such as ultraviolet rays,microwaves,or X rays and from different sources such as the sun,uranium,and nuclear weapons?

Discuss ways to prevent chemical pollution.

The number of Americans with asthma has decreased dramatically in the past 20 years.

For the first time in history there are currently more older people than young children.

Polychlorinated biphenyls (PCBs)have been linked to long-term health consequences including cancer and damage to the central nervous system.

Which is a health threat that appears to be linked with both environmental and socioeconomic factors?

Which consumer habit would be most beneficial for the environment?

Describe the primary factors that may eventually put a cap on human population.

Describe habits that can direct your consumer dollar toward environmentally-friendly products and companies.

Greenhouse gas is a gas or vapor that traps infrared radiation instead of allowing it to escape through the atmosphere,resulting in a warming of the earth.