In which year was India’s first official census survey

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

Which one of the following buffalo breed is the highest milk yielder? 

Which test is used when sample size is large (>30) and population standard deviation is known?

Which among the following is not asexual spore of fungi?

Which of the following is not a cause of seed deterioration?

What does opportunity cost in farming refer to?

Which of the following is known as fertilizer tree? 

Extension Programme is a statement of situation, objectives, problems and:

Which of the following statement is/are correct?

A. India’s first National Water Policy was adopted in 1977.

Floor space required for a cow in a covered space in sq. feet?