Scientists have changed the model of the solar system over time as technology allowed for new discoveries. In the geocentric model , which motion would occur? The Sun would revolve around the Earth. The Earth would rotate on its axis. The Earth would revolve around the Sun. The Moon would revolve around the Sun.

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.

hey, what do you need . just post the question and i may be able to you : )

"do a testcross with a homozygous recessive plant."

the answer would be d : p