Answer:
A
Explanation:
Reptiles arose about 310–320 million years ago during the Carboniferous period.
I think the answer is the sun but i could be wrong
I would say immigration only.
emigration would theoretically reduce the genetic variation as unique individuals leave, but immigration would bring unique traits into circulation in an ecosystem.
I'm not super great at biogy tho so this might not be right... :)
Answer:
add plants and trees
Explanation:
they help hold the soil in place because of their roots
Answer:
Yes earth is only so big
Explanation:
SUPOSSEBLY IN 2035 we will have a small civilization on mars. Cause in 1 million years or less humans will be over populated on earth and forced to make room underground or higher in the skies like outer space!
