The mixed 4x100m freestyle relay world record broken by

What is the purpose of puddling done in paddy cultivation?

Which term describes the process where water vapour is released from plant leaves into the atmosphere?

Nucleic acids are:

The opening on an arthropod body surface that allows for air transfer is called:

Quality protein maize is rich in

Albugo candida survives as

Which one is an example for nonselective herbicide?

Khaira disease in rice field is due to the deficiency of which of the following nutrient?

Choose the wrong statement.

Given below are two statements:

Statement I: Law of diminishing return also regarded as a fundamental law in agriculture and economics.