Multiple Choice
What is the most important reason why optical telescopes are often built on mountaintops?
A) The air is thinner.
B) The atmosphere is more steady.
C) The view of the horizon is not obscured.
D) The air is drier.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q13: Which of the following types of radiation
Q33: Which of the following types of electromagnetic
Q40: Which of the following best explains the
Q42: Space telescope A has a diameter of
Q44: A telescope has a primary with a
Q46: Which of the following statements best describes
Q47: What is a similarity between radio and
Q48: How is the resolving power of a
Q65: One of the advantages of charge-coupled devices
Q77: The Earth's atmosphere blocks most forms of