what skills and tools would be needed to make cave paintings? What does the suggest about the people who create them?

What does the process of natural selection involve

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.