Author Question: X-rays easily penetrate Earth's atmosphere and reach the ground from space. a. True b. False ... (Read 67 times)

MGLQZ · **on:** Jul 27, 2018

X-rays easily penetrate Earth's atmosphere and reach the ground from space.

a. True
b. False
Indicate whether the statement is true or false

Question 2

________ dwarfs are M dwarfs on the main sequence whereas _________ dwarfs are hot, dim, and not on the main sequence.

Fill in the blank(s) with correct word