Please help! i am confused!

it's C

Explanation:

if you look at the chart on the graph under human activities they are higher than natural processes which means human activity is having a bigger affect on global warming than natural processes.

cramming before a final is bad because it makes a student's stress level higher. students who embrace cramming to get through a final exam week find themselves struggling to perform consistently, once the brain adjusts to prolonged sleep deprivation.

answer: c

explanation: