Regarding latitudinal variations in radiation gain and loss, it is true that:
A) during the Northern Hemisphere summer, the Southern Hemisphere gains more energy than it loses.
B) during the Southern Hemisphere winter, the area of net radiation gain lies north of the equator.
C) global winds are the only significant method for redistributing heat toward the poles.
D) the equator experiences a net radiation loss for six months out of the year.
Question 2
Ocean currents are generated by:
A) the rotation of the earth.
B) the gravitational attraction of the Moon.
C) the gravitational attraction of the continents.
D) the drag of wind blowing across the water's surface.