Question

please let me know the answers

Answer 1

1. The disease which is for short period of time and can be cured easily. They do not cause long-term effect on human health is known as acute disease.

6. The process in which solid directly conveted into gas is known as sublimation.Napthalene balls and camphor.

7.It state that mass can neither be created nor be destroyed during a chemical reaction.This means that in any chemical reaction the total mass of reactant is equal to total mass of products and there is no change in mass during the chemical reaction.

Answer 2

Acute disease: The diseases which we suffer for 15 days and can be cured. Ex:cough, cold, strep throat,...