B, Gases. The gases create an insulation around the planet so it keeps in heat from heat sources.
"REPRODUCTIVE ISOLATION" needs to occur for speciation to happen.....
Answer:
intrusive igneous rocks cool from magma slowly because they are BURIED beneath the surface extrusive igneous rocks cool from lava rapidly because they form at the surface and the meaning of those words are simple intrusive means inside of something like interior and extrusive means outside which is like exterior
