A rock lies in a river bed in a warm and wet climate. Which factor would speed up its weathering? A)The rock is buried a few feet under the ground
B)The temperature of the water increases.
C)The flow of the water slows down considerably.
D)The precipitation in the area decreases.

Option D is the correct answer.

3. compressed spring because it have stored energy that is about to be kenotic if you released the com pressed spring

Producers (autotrophs) are in the bottom (first) trophic level, primary consumers are in the second trophic level, secondary consumers are in the third trophic level and tertiary consumers are in the top trophic level. energy moves through the trophic levels when one living organism is being consumed by another. moreover, energy level becomes lower as it moves up the energy pyramid because of it being released as heat. food chain is when there is a single pathway of energy transfer whereas a food web is when there are multiple pathways of energy transfer.