Rainfall is an abiotic factor. If rainfall in an ecosystem decreases, what happens to the amount of vegetation? A. The amount of vegetation increases.
B. The amount of vegetation decreases.
C. The amount of vegetation stays the same.
D. The amount of vegetation first decreases than increases.

Which of the following statements is true about both nuclear fusion and nuclear fission? they occur in the sun. heavy atoms are split. two light nuclei combine. some mass changes into energy.

Briefly explain the process of refining of petroleum.

Which of the following is not a result when a change to an equilibrium system is applied? (2 points) increasing the rate of the forward reaction will cause a shift to the left. increasing the rate of the reverse reaction will cause a shift to the left. decreasing the rate of the forward reaction will cause a shift to the left. decreasing the rate of the reverse reaction will cause a shift to the right.