What do astronomers mean by light pollution?
A) Light pollution is light from human sources that makes it difficult to see the stars at night.
B) Light pollution is a type of air pollution created by lightweight gases such as hydrogen and helium.
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.

Question

Quizplus · Accepted Answer

Astronomers use the term "light pollution" to refer to the excessive and obtrusive artificial light from human sources. This light can obscure the natural darkness of the night sky, making it difficult to observe stars and other celestial objects.

What Do Astronomers Mean by Light Pollution