Which would have the greatest potential energy? A 4lb rat on a school desk\

B 45lb dog in an oak tree

C 14 pound platypus on a swing

D 45lb child on a bike

biology is the study of life. it is the study of living organism.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

the correct answer in apex is tissue development, i know because i just had this question