7 years ago, the ratio of the ages of A and B was 1:2

Which of the following phosphatic fertilizer is suitable for acidic soils?

In the context of insect pest management, under which of the following conditions would the sterile-male technique be least effective?

Seeds which cannot be successfully stored for long periods are known as 

Which of the following is the breed of Goat :-

The properties of Neem pesticides is generally referred to  

Which of the following is a constituent element of chlorophyll ?

As per ISFR, 2021, what is the total forest cover in total geographical area of the  country.

Cauliflorous bearing habit i.e fruits are borne on trunk and branches, is found in which horticultural crop? 

Growing crops and raising live stock to meet family need is called:

The particle size of "clay" is -