Question

How does the southwest monsoon help in irrigation?

• A. It drives away the ocean currents.
• B. It washes away the silt.
• C. It fills the dams across the Cauvery River.
• D. It does not fill the dams across the Cauvery River.

Answer 1

The correct option is C It fills the dams across the Cauvery River.

Tamil Nadu receives all of its rainfall from the northeast and the southwest monsoons. The southwest monsoon pours down on the catchment areas of the Cauvery River. As a result, the dams across the river get filled and Tamil Nadu receives water. The northeast monsoon brings rain to Tamil Nadu from October to December. It serves all water reservoirs—lakes, large tanks, and ponds.