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
D. a star hope this helps :)
Could cause loss of animal habitats or more animals can become extinct because the more we built the more we are pushing them from there homes.
