Question

equator
south pole
why do these winds curve instead of going straight toward the equator?
a. because earth rotates, the coriolis effect occurs and changes the direction of the winds, causing them to curve to one side.

b. because earth rotates, jet streams occur and change the direction of the winds, causing them to curve to one side.

c. that area is hotter, so there is lower air pressure there, and the winds curve to the side toward areas with lower air pressure.

d. these winds move curve to the side because the coriolis effect causes lower pressure there, and wind moves toward areas with lower pressure.

Explanation:

To determine the correct answer, we analyze each option:

• Option A: The Coriolis effect is caused by Earth's rotation and deflects moving objects (like winds) from their straight path. This matches the reason for wind curving.
• Option B: Jet streams are fast - moving air currents in the upper atmosphere and not the cause of trade winds curving towards the equator.
• Option C: While the equator has lower pressure (due to heat), this explains wind movement towards the equator, not the curving. The curving is due to the Coriolis effect, not pressure - driven side - ward curving.
• Option D: The Coriolis effect does not cause lower pressure. Lower pressure at the equator is due to heating, and the Coriolis effect causes deflection, not pressure creation for wind curving.

Answer:

A. Because Earth rotates, the Coriolis effect occurs and changes the direction of the winds, causing them to curve to one side.