Lecture 1- Environment & Ecology by Vaishali Anand
Reference Sources• Class notes & handouts
• NCERT- XII Biology- Chapter 13 to 16
• Current Affairs
• Reference Book
• G C Leong- Chapter 15 to 25 (for biomes discussion)
Previous Years’ Questions
Q1) Which one of the following is the correct sequence of ecosystems in order of
decreasing productivity?
a) Oceans, lakes, grasslands, mangroves
b) Mangroves, oceans, grasslands, lakes
c) Mangroves, grasslands, lakes, oceans
d) Oceans, mangroves, lakes, grasslands
Q2) In the case of which of the following biogeochemical cycles, the weathering of
rocks is the main source of release of nutrients to enter the cycle?
a) Carbon cycle
b) Nitrogen cycle
c) Phosphorus cycle
d) Sulphur cycle
VAJIRAM & RAVI
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