Honey bee are useful for us as ________________________.

What we need to do before storing the grain ?

Which of the following are Kharif crop ?

The crops can be made resistant from _______________ biotic factors.

From honey bee we get ____________________.

The methods of crop improvement are needed for _____________________.

Which of the following are correct :

(a) Hen starts laying egg at the age of six months.

(b) The egg laying bird is known as ‘broody hen’.

Which of the following are correct :

(a) Rabi crop are generally planted in November.

(b) Rabi crop are generally harvested in April.

Which of the following are correct :

(a) Air contains 78% nitrogen in atmosphere.

(b) Nitrogen fixation is the process by which free atmospheric nitrogen is converted into nitrogen compounds. 

Which of the following are correct :

(a) The egg laying bird is known as ‘broody hen’.

(b) The egg has a yellow part in the centre called ‘yolk’ and is rich in fast and lipids.

(c) The white portion is rich in proteins called ‘albumin’.