Question

1. normal trade winds push warm surface water away from the coast of south america. this water is replaced by other sea water in a process called upwelling. upwelling results in:

a. higher than normal tides.
b. fewer fish to be caught by fishermen.
c. cold and nutrient - rich water along the coastline.
d. more rain along the coast.

Explanation:

• Option A: Tides are mainly caused by gravitational forces of the moon and sun, not upwelling. So A is incorrect.
• Option B: Upwelling brings nutrients, which supports more marine life, so there should be more fish, not fewer. B is wrong.
• Option C: When warm surface water is pushed away, deeper, cold and nutrient - rich water rises (upwelling), so this option is correct.
• Option D: Upwelling water is cold, which reduces evaporation and thus less rain, not more. D is incorrect.

Answer:

C. cold and nutrient - rich water along the coastline.