Question

what is the phenomenon called where weakening trade winds, in the pacific ocean, disrupt normal precipitation patterns across the world, especially in australia and the americas?

a. la niña

b. typhoons

c. the easterlies

d. el niño

Explanation:

• Option A (La Niña): It is characterized by stronger trade winds and cooler ocean temperatures in the central - eastern Pacific, so it does not match the description of weakening trade winds.
• Option B (Typhoons): These are tropical cyclones in the western Pacific, and they are not related to the disruption of global precipitation patterns due to weakening trade winds in the Pacific.
• Option C (The Easterlies): These are a general wind pattern in the tropics and do not describe the phenomenon of disrupted precipitation from weakening trade winds.
• Option D (El Niño): El Niño occurs when trade winds in the Pacific weaken, leading to warmer ocean temperatures in the central - eastern Pacific and disrupting global precipitation patterns, including in Australia and the Americas.

Answer:

D. El Niño