Question

What are non communicable diseases?

Answer 1

The diseases which cannot be transmitted from one person to another through contact with the patient is known as non communicable disease.

Example: Cancer

Cancer is a non communicable disease, it means that if someone stays near to the person having Cancer, then he will not get affected from it.

On the other hand common cold is a communicable disease. It means a person can catch it from the person already having it.

Hope it helps ^_^

Answer 2

Disease that is not caused by infectious agent are knows as non- communicable diseases. 

These diseases can't be transferred by air, water. 

Example :- Kidneystone