Who is your crush? tell me now

What does earth’s rotation on its axis cause? the tides night and day passing of years phases of the moon

How does a scientist the government? a. the scientist tells people in society what to do. b. the scientist determines the policies that the government spends money on. c. the scientist provides unbiased information to the government. d. the scientist makes laws based on his or her research results.

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.