Answer:
Stars are classified by their spectra (the elements that they absorb) and their temperature. There are seven main types of stars. In order of decreasing temperature, O, B, A, F, G, K, and M.
Explanation:
O and B stars are uncommon but very bright. M stars are more common but dim.
Answer:
39, 78 I think I'm so sorry if I'm wrong
Answer:
phototropism only happens after plants move from darkness into the light (false)
Answer:
A published opinion with supporting evidence.