Give important theories of classification. Which one is most suitable and why?

An important criterion for modern day classification is

Discuss the important theories of acid-base indicators.

What is the importance of periodic classification of elements?

Give one important feature of an element.

Why is the two-kingdom classification inadequate ?

Give an outline of the five-kingdom system of classification. What are the advantages and disadvantages of this classification ?

Give three most important reasons of population explosion in India

Give one important ore of each of sodium and megnesium.

How many most important functional aspects of ecosystem are there ? Which one is associated with rate of biomass production ?

Give the disadvantages of the two-kingdom classification.