How many pairs of ribs are there in the human

In reduction reaction what happens?

Central Sheep and Wool Research Institute is located at ______

Which of the following crop responds well to sulphur?

What is the scientific name of white grub?

At what stageBagradahilarisattacks mustard crop 

The criteria of essentiality was given by ………………. And it was redefined by………………

Toxic substance present in Colocasia is:

Failure of a viable pollen to grow down the style of the flower of the same variety is called ___________.

Match the average rainfall with climatic region:

The lowest layer of atmosphere is known as Troposphere. It extends upto a height of _____ km along the equator and ____km along the poles.