How many such pairs of letters are there in the word

Which breed of goat has the highest lactation length?

How much area in percentage is covered under storage in rural go down?

Crop responding well to transplanting 

The important ore of aluminium is-

Which herbicide is used as stomatal closing anti-transpirant when used in low concentrations?

Following are the statements pertaining to as a strip-plot-design

The detection of ghee with vanaspati can be done by

Match List I with list II

Fluchloralin & Trichloralin are examples of:

The length of time that a herbicide remains active in the soil is called