According to last paragraph of if wind exists, the will be changes in moist and heat transfer rate; therefore, the answer of question could be A and C. I don't know why the only correct option is A....would u please explain?
The transfer of heat and water vapor from the ocean
to the air above it depends on a disequilibrium at the
interface of the water and the air. Within about a
Line millimeter of the water, air temperature is close to that of
the surface water, and the air is nearly saturated with
water vapor. But the differences, however small, are
crucial, and the disequilibrium is maintained by air near
the surface mixing with air higher up, which is typically
appreciably cooler and lower in water-vapor content.
The air is mixed by means of turbulence that depends
on the wind for its energy. As wind speed increases, so
does turbulence, and thus the rate of heat and moisture
transfer. Detailed understanding of this phenomenon
awaits further study
According to the passage, wind over the ocean
generally does which of the following?
□ A Causes relatively cool, dry air to come into proximity
with the ocean surface.
□ B Maintains a steady rate of heat and moisture
transfer between the ocean and the air.
□ C Causes frequent changes in the temperature of
the water at the ocean‘s surface.
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