Question

Choose the correct option

Assertion (A): River lift system is more economical than a canal system for irrigation.

Reason (R): In the river lift system, a pump is used to lift the water from the river.

• A. Both A and R are true and R is the correct explanation of A.
• B. Both A and R are true, but R is not the correct explanation of A.
• C. A is true but R is false.
• D. A is false but R is true.

Answer 1

The correct option is D

A is false but R is true.

Option d:

Assertion statement :

1. Due to gravity, water flows to the agricultural land in a canal irrigation system.
2. Electrical energy is consumed to lift the water from the river in the river lift system.

Reason statement :

1. From the river, water is drawn directly to enhance the irrigation schemes in a river lift system.
2. Dependency on the natural flow of water from rivers by gravity from the canals is negligible in the river lift systems. Instead, other means are used like pumps and direct fetching.

Final answer : (d) A is false but R is true.