The process of boiling oil at different temperatures is called A. fracturing
B. convection
C. burn off
D. refining

Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. which of the following is not a constant or control for this experiment? a. the type of plant b. the amount of soil c. the amount of water d. the amount of time in the sun select the best answer from the choices provided a b c d

Witch one is it soo it the the question b.a,b,c,d

Soil is made of air water organic material minerals weathered rock