The answer is D. for sure i took the test no acceleration means no turning going straight no turns i hope i helped
<span>Ultra violet light is the catalyst that converts 7-dehydrocholesterol to provitamin D3. Ultra violet light can be obtained from the sun. The conversion happens when UVB light hits the skin (where 7-dehydrocholesterol naturally resides), gets absorbed, and us metabolized inside of the body.</span>
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Gravity
Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planets in orbit around the sun.
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hope this helps
Answer:
I am almost positive that it is D. I might be incorrect do i appoligise if i am.
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