What is blood clotting? How and when does it occur?

Answer the following questions : What is overloading? When does it occur? What does it cause ? How can overloading be avoided?

What is carbon dating and how does it work ?

What is carbon dating and how does it work?

What is linkage? How many linkage groups do occur in human beings?

What is respiration? How does it occur?

Explain blood clotting in short.

How does the pollution occur ?

What is rolling friction? How does it arise?

What is meant by emasculation? When and why does a plant breeder employ this technique?

What is the respiration? How does it occur?