Which of the following pollutants in water causes

The mating of animal  with wider degree of relativity than selective for close breeding is called as 

What is the working life of a tractor drawn cultivator?

One of the following seed takes longest time to germinate:

Photosynthesis cycle of C₃ plants is 

The instrument used for measuring depth of water table is known as:

_______ genes control apical – basal polarity 

Given below are two statement, one is labelled as Assertion A and the other is labelled as Reason R

The juvenile hormone in insects is secreted by which organ?

In Bulk breeding method, individual plant  selection  is  done  after  population  attains ……………….

Which of the following statements is/are true?

Statement A: Mica and biotite are the secondary minerals but also act as primary minerals.