How does time affect the physical weathering of a rock? A. The longer the rock has been exposed, the more it has weathered
B. Over time, the rock will become flat, slowing the rate of physical weathering
C. Time does not affect physical weathering, only chemical weathering
D. Rock weathers the most when first exposed, then more slowly

A

Explanation:

I believe it is A because if you leave a rock out in rain(constant rain) the water will slowly erode it and then it'll break apart and become smaller and smaller till it becomes pebbles.

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg