The layer in the atmosphere where friction is important in determining wind speed:
A)thermosphere.
B)ionosphere.
C)planetary boundary layer.
D)hydrosphere.

Question

Quizplus · Accepted Answer

The planetary boundary layer is the atmospheric layer closest to the Earth's surface where frictional effects due to the roughness of the surface are important in determining wind speed. The other choices do not involve significant frictional effects.

The Layer in the Atmosphere Where Friction Is Important in Determining