What is the moisture deficit index value for semiarid type of climate, according to AICRP on dry land agriculture?

RADAR works in which of the following EMR bands?

GPS needs at least ___ signals from satellites for providing geographic location

Specific agricultural practices used to slow down water run-off include:
A. Contour tillage B. Strip cropping C. Terracing

The critical stages in rice with respect to irrigation are (A) Crown Root Initiation (CRI) and flowering (B) Sprouting and Panicle initiation (C) Early tillering and flowering (D) Ripening and maturity

Which gas is emitted from the soil due to rice cultivation?

The drought-tolerant leguminous green manures are