Question

1. the el niño/la niña-southern oscillation

a. has a regular and predictable cycle.
b. affects weather conditions only in the pacific region.
c. impacts the jet stream and global weather patterns.
d. involves primarily the atlantic ocean.

Explanation:

• Option A: El Niño/La Niña cycles are irregular and not fully predictable, so A is wrong.
• Option B: Their effects are global, not just Pacific, so B is wrong.
• Option C: El Niño/La Niña do impact the jet stream and global weather patterns, this is correct.
• Option D: They involve the Pacific Ocean, not Atlantic, so D is wrong.

Answer:

C. impacts the jet stream and global weather patterns.