The world's greatest astronomical observatories are all located on isolated mountaintops to diminish the effects of
A)Earth's ocean and light pollution.
B)the atmosphere and light pollution.
C)the atmosphere and Earth's ocean.
D)the atmosphere and the lithosphere.

Question

Quizplus · Accepted Answer

The world's greatest astronomical observatories are located on isolated mountaintops to diminish the effects of the atmosphere and light pollution. The atmosphere can distort and blur incoming light from space, which is why observatories are typically located at high altitudes where there is less atmosphere. Light pollution from cities and towns can also interfere with astronomical observations, so it is important to locate observatories far away from any sources of artificial light.

The World's Greatest Astronomical Observatories Are All Located on Isolated