Art of making saline un-cultivable lands capable of re-cultivation is called.________?

The insect head is essentially a capsule which encloses the brain and bears the usually external (ectognathous) mouthparts, the eyes and a pair of sensory antennae. The mouth part comprise basic sections as:

How many crop of potato are sown annually________?

Which is passive factor of weathering?

The consumption of several flavours and micromtrients per person per year is________?

Haustoria are produced ________?