The purchasing power of money is equal

 ‘Pusa Naveen’ is a variety of:

Experiment that unambiguously demonstrated that DNA is the genetic material was conducted by:

The book Nature and Properties of Soils is written by

Malling IX is a rootstock of:

The application of organic manures in the soil helps in/tends to:

Which of the following could be the valid value(s) of the correlation coefficient between two variables?

(A) -1

(B) +1

(C) -2

Bhadawari buffalo is identified by which one body colour?

Phenol on distilling with zinc dust gives:

Which of the following is used in neutron moisture  meter as neutron source? 

Chlorimuron ethyl belongs to the herbicide family