The sum of the roots of the quadratic equation 4x² + 7x

Which among the following nutrient deficiencies is first observed as interveinal chlorosis on older leaves due to its mobility within the plant?

The first Indian Cooperative Societies Act was passed in the year:

Which among the following is the most crucial role of mulch in dryland agriculture?

Blossom end rot in tomato is due to deficiency of ___

Which of the following is affected first under water stress conditions?

The inflorescence of fennel is which of the following?

Which soil horizon is most affected by faunal pedoturbation?

_______ is the general term for a buying and selling process that is supported by electronic means.

Who has become the first women Director General of World Trade Organization?

The term Green revolution was coined by