The heterosphere is the layer of the atmosphere in which the gases are _______ because of _______.
A)well mixed; thermal motions (i.e.,convection)
B)well mixed; the influence of gravity which causes gases of different weight to diffuse randomly
C)poorly mixed; the influence of gravity which causes gases of different weight to separate into layers
D)poorly mixed; thermal motions (i.e.,convection)

Question

The heterosphere is the layer of the atmosphere in which the gases are _______ because of  _______.
A)well mixed; thermal motions (i.e.,convection)
B)well mixed; the influence of gravity which causes gases of different weight to diffuse randomly
C)poorly mixed; the influence of gravity which causes gases of different weight to separate into layers
D)poorly mixed; thermal motions (i.e.,convection)

Quizplus · Accepted Answer

The heterosphere is the upper layer of the atmosphere where the gases are poorly mixed due to the influence of gravity, causing gases of different weight to separate into layers. This is different from the lower layer, the homosphere, where the gases are well mixed due to thermal motions caused by convection.

The Heterosphere Is the Layer of the Atmosphere in Which