Which one of the following is the largest sector of Pakistan’s economy?

All organism or cell having a chromosome number that is not an exact multiple of the monoploid or basic number is known as________?

Drought is measured in terms of________?

The force with which the particles of same body are held together is called________?

When FSL of the canal is sufficiently above the bed level of drainage so that canal flows under syphonis action, the structure is called ________?

The depth of water required by crops during the base period is called________?