Ask Question
10 August, 17:01

14. How do scientists know that the universe is expanding? The galaxies are moving away from each other, and the temperatures are decreasing. The galaxies are moving away from each other, and the temperatures are increasing. The galaxies are moving toward each other, and the temperatures are increasing. The galaxies are moving toward each other, and the temperatures are decreasing.

+2
Answers (2)
  1. 10 August, 17:56
    0
    Scientist know that the universe is expanding because of redshift which is a type of Doppler effect
  2. 10 August, 18:37
    0
    The galaxies are moving away from each other and the temps are decreasing
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “14. How do scientists know that the universe is expanding? The galaxies are moving away from each other, and the temperatures are ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers