GTU BE 1st and 2nd Semester 2110007 Environmental Studies Summer 2018 Question Paper

Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE – SEMESTER ? 1
st
/ 2
nd
EXAMINATION (NEW SYLLABUS) ? SUMMER 2018
Subject Code: 2110007 Date: 25-05-2108
Subject Name: Environmental Studies
Time: 02:30 pm to 05:00 pm Total Marks: 70
Instructions:
1. Question No. 1 is compulsory. Attempt any four out of remaining Six questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 Objective Question (MCQ)Mark
(a) Choose the most appropriate answer for the following multi choice
questions:
07
1. The range of temperature variation in mesosphere is (a) 20?C to -56?C (b) -2?C to -90?C (c) -56?C to -2?C (d) -90?C to 120?C
2. During photosynthesis, autotrophs take in (a) Oxygen (b) Carbon dioxide (c) Nitrogen (d) Sulphur
3. Which ecosystem shows an inverted pyramid of biomass? (a) Pond (b) Forest (c) Grassland (d) Desert
4. Which one of the following is not a method for water conservation? (a) Rain water harvesting (b) Ground water extraction (c) Improving irrigation efficiency (d) Avoiding water wastage
5. If the population of a species increases suddenly, is known as (a) Population growth (b) over population (c) population explosion (d) population forecasting
6. The death of infants per 1000 births, are known as (a) Birth rate (b) Mortality (c) Infant mortality rate (d) Total fertility rate
7. Which of the following is not physical quality parameter of water? (a)Turbidity (b) Odour (c) Hardness (d) Temperature

(b) Choose the most appropriate answer for the following multi choice
questions
07
1. Bhopal gas tragedy occurred due to leakage of (a) Chlorobenzene (b) Carbon monoxide (c) Methyl Isocyanate (d) Dioxins
2. Which one is not greenhouse gas? (a) CO2 (b) Ozone (c) CH4 (d) CFC
3. Which one of the following is not a fossil fuel? (a) Natural gas (b) Petrol (c) Coal (d) Uranium
4. Global environmental problems are: (a) Global warming (b) Ozone depletion (c) Acid rain (d) All of above
5. __________ is a greenhouse gas. (a) Nitrogen (b) Oxygen (c) Argon (d) Water vapour
6. Wild life protection act was enacted in (a) 1952 (b) 1955 (c) 1972 (d) 1982
7. The world ?Environment Day? is celebrated on (b) 15th June (b) 5th June (c) 5th January (d) 15th February

Seat No.: ________ Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE – SEMESTER ? 1
st
/ 2
nd
EXAMINATION (NEW SYLLABUS) ? SUMMER 2018
Subject Code: 2110007 Date: 25-05-2108
Subject Name: Environmental Studies
Time: 02:30 pm to 05:00 pm Total Marks: 70
Instructions:
1. Question No. 1 is compulsory. Attempt any four out of remaining Six questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.
Q.1 Objective Question (MCQ)Mark
(a) Choose the most appropriate answer for the following multi choice
questions:
07
1. The range of temperature variation in mesosphere is (a) 20?C to -56?C (b) -2?C to -90?C (c) -56?C to -2?C (d) -90?C to 120?C
2. During photosynthesis, autotrophs take in (a) Oxygen (b) Carbon dioxide (c) Nitrogen (d) Sulphur
3. Which ecosystem shows an inverted pyramid of biomass? (a) Pond (b) Forest (c) Grassland (d) Desert
4. Which one of the following is not a method for water conservation? (a) Rain water harvesting (b) Ground water extraction (c) Improving irrigation efficiency (d) Avoiding water wastage
5. If the population of a species increases suddenly, is known as (a) Population growth (b) over population (c) population explosion (d) population forecasting
6. The death of infants per 1000 births, are known as (a) Birth rate (b) Mortality (c) Infant mortality rate (d) Total fertility rate
7. Which of the following is not physical quality parameter of water? (a)Turbidity (b) Odour (c) Hardness (d) Temperature

(b) Choose the most appropriate answer for the following multi choice
questions
07
1. Bhopal gas tragedy occurred due to leakage of (a) Chlorobenzene (b) Carbon monoxide (c) Methyl Isocyanate (d) Dioxins
2. Which one is not greenhouse gas? (a) CO2 (b) Ozone (c) CH4 (d) CFC
3. Which one of the following is not a fossil fuel? (a) Natural gas (b) Petrol (c) Coal (d) Uranium
4. Global environmental problems are: (a) Global warming (b) Ozone depletion (c) Acid rain (d) All of above
5. __________ is a greenhouse gas. (a) Nitrogen (b) Oxygen (c) Argon (d) Water vapour
6. Wild life protection act was enacted in (a) 1952 (b) 1955 (c) 1972 (d) 1982
7. The world ?Environment Day? is celebrated on (b) 15th June (b) 5th June (c) 5th January (d) 15th February

Q.2 (a) Define: (i) Consumers (ii) Producers (iii) Decomposers 03
(b) (c)Write in points: Conservation in Environment.
Why environmental education is important? Explain the impact of
technology and development on environment.
04
07

Q.3 (a) Define and differentiate Undernourishment and malnourishment. 03
(b) (c)Explain the various sources of water pollution.
How ecological balance is maintained in ecosystem? Describe energy flow
in ecosystem schematically.
04
07

Q.4 (a) Define: (i) Ecology (ii) Saprotrophs (iii) Eutrophication 03
(b) (c)What the causes of land degradation
Describe the importance of Biogeochemical cycles in biosphere. Explain
Nitrogen cycle with the help of a diagram.
04
07

Q.5 (a) Define the term: Global Warming, Soil Erosion and Green House effect. 03
(b) (c)Explain oxygen cycle with a neat sketch.
Define the term Acid rain. Discuss the various causes and effects of acid
rain on the environment.
04
07

Q.6 (a) What are the objects of Environmental protection act 1986. 03
(b) (c)What are the effects of thermal pollution and detergents on aquatic life?
What do you understand by acceptable noise level? Briefly describe the sources
and effects of noise pollution.
04
07

Q.7 (a) Give full form of: GPCB, GEC and GSDMA 03
(b) (c)Explain Food Web
What are the environmental impacts of a coal based thermal power plant?
Suggest suitable solution to the energy problems in view of growing
population and industrialization of India.
04
07

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