निम्नलिखित

The yellowing of older leaves at the base of a plant typically indicates a deficiency of which nutrient?

Which of the following is not a principle of plant disease control?

The genetic constitution of a character present in chromosome/nucleus is known as

The most reactive among the halogens is-

Grapes contain which of the following acids?

Sprinkler irrigation system remains a better choice for irrigating areas that have

Which country is known as the land of thunder bolts?

Frequencies of the classes are plotted by dots against the mid-points of each class and then the adjacent dots are connected by straight lines be called?

Fibre of economic importance which is derived from which part of cotton plant 

Which component of a disc harrow prevents clogging and removes soil from the concave side of the disc?