Define biodiversity?

The UN Earth summit, which defined Biodiversity, was held in the year:

How are botanical gardens useful in conserving biodiversity ? Define the terms Flora, manuals, monographs and catalogues ?

Define sacred groves. What is their role in the conservation of biodiversity?

What are biodiversity hot spots ? What is the measure of the biodiversity ?

What do you mean by biodiversity? What are the various ways of measuring biodiversity?

What is biodiversity depletion? four "Evil Quartet" which cause depletion of biodiversity

Define Hotspot of biodiversity. Write the causes & wax of conservation of biodiversity.

Define hotspots. Name the hotspots of India. What kind of biodiversity do they have?