Explain various stages involved in a lithosere.

Define Hydrosere.Explain various stages in hydrosere.

Briefly explain the various steps involved in the process of decomposition.

What is amniocentesis ? Explainthe various steps involved in this technique.Write its two significances also.

What is PCR ? Explain the various steps involved in PCR technique.

Define lithosere.

Explain the various steps occurring in lithosphere formation.