One ton of refrigeration is equivalent to the capacity to absorb heat at the rate of:

Geohydrological unit of the land which drains through a common point is called

The On-Farm Development (OFD) activities undertaken under Command Area Development include: (A) Construction of field channels and drains (B) Reclamation of waterlogged areas (C) Renovation and rehabilitation of minor irrigation tanks

Bench terrace sloping outwards are effective only in

Given below are two statements: Assertion (A) and Reason (R). Assertion (A): Mechanical measures include contour bunding, contour cultivation and bench terracing. Reason (R): Mechanical measures consist of destruction of mechanical barriers across the line of flow of water.

Geohydrological unit of the land which drains through a common point is called