What is pollution? Enlist its types.

What is rectifier? State its types?

What is a proenzyme? Enlist various proenzymes involved in process of digestion and state their function.

What is RNA? Enlist types of RNA.

What are spinal nerves? Enlist the types of spinal nerves.

Enlist incidences of radioactive pollution? Write their effects.

What is cerabrospinal fluid? Enlist its functions.

Answer the following question in detail: What is radioactive pollution? What are its effects?

What is Arthritis? What are its types?

What is immunity? Name its types.

What is acceleration? State its units and types.