Which of the following questions can be answered by science? I. How does ocean acidification affect marine biodiversity?
II. Which climate conditions lead to food scarcity?
III. Which endangered species require the most human intervention?

I and II
II and III
I and III
I only

Which measure of an earthquake depends on how close you are to the focus?

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.

How do all types of diffusion/passive transport actually ‘work’ without using even the smallest amount of cellular energy?