What Do Astronomers Mean by Light Pollution

question 8

Multiple Choice

What do astronomers mean by light pollution?

• A)Light pollution is a type of air pollution created by lightweight gases such as hydrogen and helium.
• B)Light pollution is light from human sources that makes it difficult to see the stars at night.
• C)Light pollution means contamination of light caused by chemicals in the Earth's atmosphere.
• D)Light pollution is a term used to describe the appearance of the sky in regions that are crowded with stars.

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Definitions:

Administrative Agency

A government body empowered to implement particular legislation, manage public policy, and regulate certain activities within its jurisdiction.

Department of Homeland Security

A cabinet department of the U.S. government charged with protecting the United States from terrorist attacks and responding to natural disasters.

Cabinet-Level Department

A major administrative unit in the executive branch of the government, typically headed by a Secretary, that deals with broad areas of national policy.

Enabling Legislation

Laws that provide the necessary authority for an entity or agency to carry out its powers and duties.