A student conducts an experiment to test how the temperature of a ball affects its bounce height. The same ball is used for each test, and the ball is dropped from the same height each time. What is the independent variable?

A. The temperature of the ball

B. The drop height of the ball

C. The bounce height of the ball

D. The type of ball

Where is the only location in the united states where you drive on the left side of the road?

Which of the following statements best describes what is occurring in the land surrounding the sahara desert? a desertification is increasing, and the desert is expanding. b. fewer people are trying to farm in this semiarid region. c. the desert is shrinking with the increased use of irrigation. d. increased urbanization has resulted in decreased deforestation. select the best answer from the choices provided mark this and return save and exit next submit

What is the main source of phosphorus?