In the equation $\log S = \log C + Z \log A$,what does '$A$' represent?

India's ecological diversity is greater than which Scandinavian country?

How many countries pledged their commitment to achieve a reduced rate of biodiversity loss by $2010$ in the World Summit on Sustainable Development held in $2002$ in Johannesburg,South Africa?

Given below are pie diagrams $I$,$II$ and $III$ related to the proportionate number of species of major taxa of invertebrates,vertebrates and plants respectively. Critically study and fill in the blanks $A, B, C$ and $D$.

Identify the incorrect statement from the following.

Rauwolfia vomitoria shows genetic variation in: