A food chain consists of a

Consider the following statements:
1.Plants producing allergenic pollen grains are windpollinated
2.Legumes are the only flowering plants capable of fixing atmospheric nitrogen in association with bacteria.
3.Hay fever is caused by pollen allergy. 
Which of the above statement/s is/are true? Select the correct answer using the codes given below:

Which of the following analgesics is not habit-forming?

The tonnage (1 ton, 2 ton, etc.) of an air conditioner (AC) denotes:

A glass tumbler containing ice shows droplets of water on the outer surface because

Name the terminals of an FET.

What was the active medium used in the first working laser ever constructed?

Of all the gases present in the air, which one of the following is the highest in percentage?

Consider the following statements:
1.The constant use of alcohol over years makes the blood vessels brittle and rigid.
2.The deposition of alcoholic fat in the blood vessels affects adversely the working of the heart.
3.Alcohol is a stimulant and not a depressant.
4.Methanol (wood alcohol) that is found in spurious drinks is highly toxic and causes blindness. 
Which of the above statement are correct?

The Buchhloz relay is used to protect the