List the four spheres of the earth and describe three examples of processes that represent an exchange of energy or matter between those spheres.

Four spheres of earth are:1)Lithosphere(land)  2)Hydrosphere(water) 3)Biosphere(living things) 4)Atmosphere(air).

Energy and matter flow through Earth's four spheres.Energy flows through the atmosphere and hydrosphere mostly by convection.The continuous cycling of matter and energy through earth's system makes life on earth possible .Others are driven by energy from the sun.

Explanation:

the answer is c) an oak tree

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.