Write any to basic conditions necessary for keeping good health

Give reasons : Social harmony and good economic conditions are necessary for good health.

What conditions are essential for good health?

Write two conditions necessary for rusting of iron.

Write the conditions necessary for nuclear fusion.

Explain giving reasons a) Balanced diet is necessary for maintaining healthy body. b) Health of an organism depends upon the surrounding environmental conditions. c) Our surrounding area should be free of stagnant water. d) Social harmony and good economic conditions are necessary for good health.

What is necessary for individual health?

What is meant by the term 'interference of light' ? Write any two conditions necessary for obtaining well define and sustained interfernce pattern of light.