Which of these factors affects the rate of weathering?
a. climate
b. chemical composition of the exposed rock
c. surface area of the exposed rock
d. all of the above

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

The transport tubes from food came down the plant are called?

Which process of living things produces water that enters the water cycle