Question

read the text.
named after gustave coriolis, a nineteenth - century mathematician, the coriolis effect is caused by earths rotation. as wind and ocean currents move across earths surface, the planet itself is rotating from west to east. as a result, the currents appear to travel along a curved path instead of a straight one. wind and water currents traveling from the equator toward the poles bend eastward, while currents traveling from the poles toward the equator bend westward. the coriolis effect explains why hurricanes spin counterclockwise in the northern hemisphere and clockwise in the southern hemisphere.
which authors purpose is suggested by the text?
to convince readers that the coriolis effect is real
to introduce readers to the coriolis effect
to describe the characteristics of hurricanes in the northern and southern hemispheres

Explanation:

The text gives an overview of the Coriolis effect, its cause (Earth's rotation), how it affects wind and ocean currents (curved paths, direction of bends), and its relation to hurricane spin. It is not focused on convincing the effect's reality (no argument against doubters) or mainly on hurricane characteristics (just a mention as an example). It is introducing the Coriolis effect.

Answer:

to introduce readers to the Coriolis effect