What is meant by viable industry? Explain with the help of a diagram.

What is meant by Primary industry?

What is meant by a food web? Explain with the help of a simple diagram.

What is meant by dispersion of light explain with the help of diagram and give the cause of dispersion

What is meant by term modulation? Explain with the help of a block diagram. How the process of modulation is carried out in radio boadcast?

What is meant by a contact force ? Explain with the help of an example.

What is an electric circuit ? Explain with the help of a diagram.

What is meant by pair production ? Explain with the help of an example and a balanced equation.

What is meant by expansion is demand ? Explain it with the help of a schedule and a diagram.