Dr. Keyes is a veterinarian who believes that people are happier if they own more pets. He hopes
to fund a research project to demonstrate this so he can increase the number of pets adopted at the
local animal shelter he runs. He is proposing a correlational study to examine this belief.

False.

Explanation:

The study that Dr. Keyes wants to do is a study that uses two variables (pets and happiness). Dr. Keyes wishes to prove the cause and effect relationship between these two variables that prove that the greater the amount of pets (causes) people have, the greater the happiness of these people (effect). For this reason, we can say that Dr. Keyes is not doing a correlational study.

This is because, although the correlational study wishes to observe the relationship between two variables, this study cannot be applied to cause and effect relationships.

we know that the limit of both -1/x and 1/x as x approaches either positive or negative infinity is zero, therefore the limit of sin(x)/x as x approaches either positive or negative infinity is zero.

answer; the overproduction of cotton destroyed the soil;