The free distance on the paddy surface which a wind can travel to any point to rise waves is called________?

The wearing away of the land surface by wind, water, ice or other geological agent is called________?

Mango is grown in soils with pH________?

An organism or cell having a chromosome number that is higher than the exact nultiple of the basic number is known as________?

The amount of pest induced injury to the crop which will justify the cost of artificial control measures is called________?

Clear water with organic matter or sediment and minimum biological activity is known as________?