The cost price and the marked price of a book have a

In conservation tillage, how much % area has to be  covered with crop residues? 

Herbicide atrazine belongs to which category of herbicides?

_____is an amber coloured thin layer over the surface of the epidermis which is strengthened by outer polyphenol layer.

Which of the following are non-nutrient compounds found in plant derived food that have biological activity in the body.

Which type of farming involves clearing tracts of land by burning, cultivating for a limited period, and then abandoning the land for a number of years?

Who first saw and described a live cell under microscope? 

Following names are associated with numerical taxonomy

Which nutrient is essential to build, repair and maintain body tissue?

Rusts are among the most important fungal diseases of wheat worldwide. Which order generally caused the most deadly rust disease of wheat? 

The Normal lapse rate is ________’ C per Km.