Question

Which of the following statements is true?

Answer 1

The answer is B. They are in control of the experiment, they can change it the variables to better help the experiment.

Answer 2

"D) Observations are often used to form questions about the world." is the true statement.

A is false because creating a hypothesis is the first step in an experiment, not the last.

B is false, the INdependent variable is the one changed by the experimenter.

C. is false because hypothesis are used to form the question, not answer them.