Environmental Sciences 1002 cat 2 2016-17

SCHOOL OF ADVANCED SCIENCES

Continuous Assessment Test – II, October 2016

Fall Semester 2016 ~ 17

Course Code	: CHY1002		Duration	: 90 minutes
Course Name	: Environmental Sciences		Max. Marks	: 50
Slot	: F1		Date	: 07.10.2016
Class number	: 7402,7412,7422,7432		Time	: 2.00-3.30 PM
Faculty Names	: Prof. Ravikanth Kamlekar, Prof. Santhakumar K, Prof. Sumathi S,                                  Prof. Barnali Maiti

Answer ALL the Questions  (10 x 5 = 50 Marks )

                                  

1.     Describe the features of a mass burn incinerator and mention some of the problems associated with incinerators.

2.    Spiritual dip in holy Ganga at Kumbh is not clean.  Why it is regarded as open sewer? If so will you recommend uniting all Indian rivers?!  List the possible impact of pollution and the ways to overcome.

3.    Why has an “ozone hole” appeared over Antarctica when ozone depleting substances are present throughout the stratosphere?

4.    State, why a car parked in the sunshine with its windows closed is found much more hot inside than outside?

5.    ‘Nature maintains a balance of carbon dioxide and oxygen in the atmosphere”, Comment.

6.    What's the difference between PV and other solar energy technologies?

7.    Nuclear energy is a clean form of energy. Give any three points each to support and contradict this statement

8.    Can any source of energy be pollution-free? Why or why not? Why is biogas a better fuel than animal dung-cakes?

9.    How much wind is needed to turn a wind turbine?  How much energy is produced by wind turbines?  How long does it take to build a wind farm?

10.  Hydrogen is a clean source of energy and it will revolutionize our energy future. How will you defend this declaration?

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