4. Which best explains why runoff is important? A. It returns water to other locations on Earth
B. It increases the chance of flooding
C. It makes evaporation occur faster
D. It increases condensation

water: cools down faster, heats up faster, idk the last one

land: cools down slower, heats up slower, idk the last one

edit: if anything i answer is incorrect, i'm sorry. double check my work with someone else before using it. you for understanding.