In which environment is erosion likely to have the most impact? a) a steep hillside with little vegetation and strong downpours

b) a steep hillside covered with grasses and mild downpours

c) a flat valley with little vegetation and heavy downpours

d) a flat valley covered with grasses and mild downpours

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form