The spreading habit of the crop caused by insect which makes cultivation, weeding and harvesting more difficult is process of________?

A particular flood which can occur in the basin in the worst meteorological and hydrological conditions is called ________?

The lower leaves turn yellow and in some crops they quickly start drying up as if suffering from shortage of water, stunted growth, leaves & fruits shedding & whole plant becomes yellow, are deficiency symptoms of:________?

Out door production of vegetables, out of their normal season is known as________?

Gassypium hirsutum was developed from a cross between________?

The precipitation that occurs because of frontal disturbances during the movement of barometric low pressure is called ________?