The is the process that describes the formation, breakdown, and reformation of earth's rock and mineral materials. a. kreb's cycle b. magma fuel cycle c. rock cycle d. volcano formation

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.