Which of the following is the primary reason for the high rainfall in the northern plains during summer? MCQ with Answer and Explanation

Explanation:
A cold front is the boundary between a cold air mass and a warm air mass, where the cold air pushes under the warm air, causing rapid temperature drops, heavy rain, and strong winds.

Explanation:
Stratus, Cumulus, and Cirrus are types of clouds. A tornado is a violent rotating column of air that extends from a thunderstorm to the ground, not a cloud type.

Explanation:
The term Indian Ocean Dipole was introduced by N. Saji and T. Yamagata in 1999. Sir Gilbert Walker is known for the Southern Oscillation, J. Bjerknes for ENSO theory, and H. H. Lamb for climate studies.