That is the most important area and this is where you should
focus with right approach as far as Geography & Environment is concern. Because
25% (almost 1/4th) of the questions are coming and even more than that approx
30% of the questions you can expect from this section.
The questions are not bookish knowledge based or not from any
botany or biology environment book and they ask what is ecosystem and all such
type of questions. They are asking based on information which generally appear
in the newspaper. For example Algae Boom, Cold wave in US and these kind of news
which interest you and which can be asked. So prepare such questions and all
clues while you read the newspaper.
Indian Geography which is very important and we must
read Indian portion very carefully from NCERT and other resources. This section
will have around 10 to 12 questions. General Geography is also very
important that is Geomorphology portion, Climatology portion, Natural vegetation
and related to Biodiversity.
And some questions from the World Geography also and
we would take it as a least important. But maximum focus should be on Indian
geography and all other parts of the general geography that will make a lot of
difference. Because 25 to 30 questions in Preliminary, That is Not a Joke.