During the water cycle, the sun's energy evaporates water from the surface of earth. this water is the source of a) respiration. b) transpiration. c) precipitation. d) ozone depletion.

In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .

Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.

Why does bubbling occur when vinegar mixed with baking soda