If a researcher only wanted to examine the relationship between exercise and grade point average, would be used to test the variables a. Correlation analysis b. Regression c. Hypothesis d. Central tendency measures

1. a tropical dry forest carries out more rapid nutrient cycling

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

i think the answer is b.