Question

water is cooler near the poles and warmer near the equator. movement of cooler and warmer water from these regions moderates the global climate. which of the following describes the movement of water between the poles and the equator?
a. ocean currents
b. tides
c. evaporation
d. gravity

Explanation:

To solve this, we analyze each option:

• Option A: Ocean currents are the movement of ocean water, which can transport warm and cool water between poles and equator, moderating climate.
• Option B: Tides are the rise and fall of sea levels due to gravitational forces of the moon and sun, not related to water movement between poles and equator for climate moderation.
• Option C: Evaporation is the process of water turning into vapor, not the movement of water masses between regions.
• Option D: Gravity is a force that pulls objects, it doesn't describe the movement of water between poles and equator for climate moderation.

So the correct option is A as ocean currents move water between these regions.

Answer:

A. ocean currents