Question 1 of 10 Plants make glucose using energy from the sun and two molecules. Which
two molecules do they use?
O A. Ethane and ammonia
O B. Carbon dioxide and water
O C. Nitrogen and oxygen
D. Water and oxygen

When do scientists consider a hypothesis valid? a. when the hypothesis is testable b. when the hypothesis is published in a scientific journal c. when more than one person supports the hypothesis d. when experimentation shows it to be true