Which statements describe interactions between two of earth’s spheres? check all that apply. water flows from a stream to a lake. water evaporates from a lake into the air. wind moves parts of rocks to another location. lions use energy to catch other animals for food. polar bears dig big holes in hills of snow to protect their young.

Evaporation of water from a lake into the air shows the interaction between two spheres of Earth, that is, hydrosphere and atmosphere.  

Moving of the parts of the rock to another location with the help of wind also involves interactions between the two Earth's spheres, that is, atmosphere and geosphere.  

Digging of big holes in snow by the polar bears to protect their young ones, is also an illustration of associations between two of the Earth's spheres, that is, biosphere and cryosphere.  

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.

the answer is "a.) well–developed vascular system."

explanation: