Explain the formation of Mirage .

Explain the formation of zygote

Explain the formation of ATP.

Explain the formation of hydrogen molecule.

Consider the following statements: The principle of total internal reflection is applicable to explain the 1. Formation of mirage in desert. 2. Formation of image in microscope. 3. Colour of evening sky. 4. Operation of optical fibres. Which of the statement given above are correct?

Explain the formation of a chemical bond

Explain the formation of thunder.