A positive phase of the Pacific-North American (PNA) pattern is associated with: MCQ with Answer and Explanation

A positive phase of the Pacific-North American (PNA) pattern is associated with:
A. Colder than normal temperatures in the Pacific Northwest
B. Warmer than normal temperatures in the Pacific Northwest
C. Drier than normal conditions in the Pacific Northwest
D. Wetter than normal conditions in the southwestern United States
Answer: Option B
Solution (By JKExamLibrary)
A positive PNA phase is associated with warmer than normal temperatures in the Pacific Northwest and colder than normal temperatures in the southeastern United States, with a ridge over western North America.

This question belongs to: Geography GK Climate and Weather

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Climate and Weather Questions

Question #1 Report Error
Loo is a characteristic feature of which season in India?
A. Summer
B. Autumn
C. Winter
D. Monsoon

Correct Answer: Option A


Explanation:
Loo is a strong, hot, dry wind that blows over the northern plains of India during summer, especially in Rajasthan, Uttar Pradesh, and Bihar.

This question belongs to: Geography GK Climate and Weather
Question #2 Report Error
Which of the following is the primary reason for the high rainfall in the Andaman Sea region?
A. Convection
B. Southwest Monsoon
C. All of the above
D. Orographic effect

Correct Answer: Option C


Explanation:
The Andaman Sea region receives high rainfall due to the Southwest Monsoon, the orographic effect of the islands, and intense convection.

This question belongs to: Geography GK Climate and Weather
Question #3 Report Error
Which of the following is the primary reason for the high rainfall in the northern plains during summer?
A. Low pressure (monsoon trough)
B. Western Disturbances
C. Cyclones
D. High pressure

Correct Answer: Option A


Explanation:
During summer, low pressure (the monsoon trough) develops over the northern plains, drawing in moisture-laden winds and causing rainfall.

This question belongs to: Geography GK Climate and Weather