7. Which type of tectonic plate movement results in the formation of mid ocean ridges? (8.9B, L2)
A. sliding past each other
B. pushing together and upwards
C. pulling away from each other
D. one plate sliding under another

Which statement is a physical property? becomes moldy quicklyeasy to digestconducts electricity poorlydoes not burn

Describe characteristics of a good respitory surface

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.