The largely tropical ............. rain forest in South America has the greatest biodiversity on earth.

The term $Biodiversity$ was popularized by $........$.

How many Biosphere Reserves are there in India?

Arrange the following in descending order of number of species in the Amazonian rain forest.
$(a)$ Plants
$(b)$ Birds
$(c)$ Fishes
$(d)$ Invertebrates
$(e)$ Mammals
Choose the correct answer from the options given below:

Write an explanatory note on Biodiversity.

In India, we find mangoes with different flavours, colours, fibre content, sugar content and even shelf-life. The large variation is on account of