How do icebergs form? O They form when seawater freezes.
O They form when groundwater freezes.
They break off from the coast of Iceland.
O They break off large ice sheets found at the poles.

What best explains the inability for life to exist in earth early atmosphere

How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased

Give two examples of what would occur if one of the pairs did not match or had an extra chromosomes. explain how this might occur, and if it would be dangerous to the individual. fast.