From the experiments of francisco redu and louis pasteur, we know that? ? (a.) spontaneous generation is, in fact, possible.(b.) life must come from other life, spontaneous generation can not occur.(c.) life likely started when lightning struck the ancient earth (the primordial soup theory).

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 median of the data is 4.5.

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.