Basics of Environmental Studies - Dec 2014

First Year Engineering (Semester 1)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1 (a) 1 When is world environment day celebrated
(a)4 june
(b)5 june (c)7 july
(d)5 july(1 marks) 1 (a) 2 Sundar Lal Bahuguna is known for his association with
(a)Kerala Sastra Sahitya Parishad (b) Chipko movement (c)Samaj Parivartan Samudaya (d) Dasholi Gram Swarajya Mandal(1 marks) 1 (a) 3 Which of the following can be said to be the example of secondary succession
(a)Pond
(b)farm (c)desert
(d)forest(1 marks) 1 (a) 4 Discharge of organic waste water into river will
(a) Reduce dissolve oxygen
(b)Reduce pH
(c)Increase total dissolve solids
(d)Toxic to humans(1 marks) 1 (a) 5 Among the given options, which one is not correct for the use of large amount of fertilisers and pesticides ?
(a) They are eco-friendly
(b)They turn the fields barren after some time
(c)They adversely affect the useful component from the soil
(d)They destroy the soil fertility(1 marks) 1 (a) 6 Which is not true?
(a) Lithosphere includes the crust and the uppermost mantle
(b)Lithosphere is underlain by the stratosphere
(c)Lithosphere provides timber
(d)Lithosphere is broken into tectonic plates(1 marks) 1 (a) 7 Noise is:
(a) Loud sound
(b)Sound of high frequency
(c)Unwanted sound
(d)Constant sound(1 marks) 1 (b) 1 Van Mahotsav is an annual tree-planting festival in India, celebrated on:
(i) 2nd June ( ii) 1st July (iii) 1st December (iv) 15th September(1 marks) 1 (b) 2 Wild life protection act was enacted in
(i)1952 (ii) 1955 (iii) 1972 (iv) 1982(1 marks) 1 (b) 3 Which one is not greenhouse gas? (i) CO₂ (ii) Ozone (iii) CH₄ (iv) CFC(1 marks) 1 (b) 4 Out of these which is a renewable source of energy
(i)Natural Gas (ii) Wind energy (iii) Nuclear power (iv) petroleum(1 marks) 1 (b) 5 Which of the group of diseases is spread through contaminated food or water
(i)Typhoid cholera & dysentery (ii)Tetanus Hepatitis & AIDS (iii)Measles influenza & small pox (iv)Rabies Malaria & encephalitis(1 marks) 1 (b) 6 Minimata disease is due to
a) Hg (mercury) (b) Pb (lead) (c) Zn (Zinc) (d) Mg (Magnesium)(1 marks) 1 (b) 7 Percentage of total water found as fresh water is_______
(i) 87.5% (ii) 2.5% (iii) 97.5% (iv) 75%(1 marks) 2 (a) Diagrammatically represent & explain the structure & composition of Atmosphere.(3 marks) 2 (b) Why water is a unique natural resource What are the consequences of over utilization and pollution of water.(4 marks) 2 (c) Analyze the statement that 'Approximately 75% of the earth surface is covered by water then to availability of fresh water is the biggest crisis facing the world today.'(7 marks) 3 (a) Define & differentiate Undernourishment & malnourishment.(3 marks) 3 (b) Why is environmental education provided to engineers(4 marks) 3 (c) Write a short note on any two non-conventional sources of energy.(7 marks) 4 (a) Define pollution, pollutants and population explosion(3 marks) 4 (b) Discuss the air pollution caused by oxides of nitrogen and sulphur(4 marks) 4 (c) Analyse the relationship between population and pollution.(7 marks) 5 (a) What do you mean by food chain. Explain different types of food chain with example.(3 marks) 5 (b) Explain pyramid of energy.(4 marks) 5 (c) Suggest how we can increase the social awareness for judicial use of water, land & greenery in our surrounding.(7 marks) 6 (a) Define the term exploitation & global warming.(3 marks) 6 (b) How Ozone is getting depleted from the atmosphere? Explain with chemical reaction.(4 marks) 6 (c) Comment on the statement 'Products are made psychologically obsolete long before they actually wear out'(7 marks) 7 (a) Explain the aim & objectives of Air ( Prevention & control of pollution ) Act 1981(3 marks) 7 (b) What do you understand by environmental ethics & what are its objectives(4 marks) 7 (c) Discuss the statement 'Sustainable development is the need of the hour'(7 marks)