Download SGBAU BSc 2019 Summer 2nd Sem Home Science Ecology n Environment Question Paper

Time : Three Hours] [Maximum Marks : 40

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B.Sc. (Part-I) (Home-Science) Semester—II Examination

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2.6 : ECOLOGY AND ENVIRONMENT

Paper-125EE13

Note :— (1) All questions are compulsory.

(2) Draw diagrams wherever necessary.

(3) All questions carry equal marks.

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1. Write in detail about problems of housing and essential services in cities and towns and their control.

   OR

   Write in detail about causes and impact of uncontrolled population growth. 8

2. Identify whether the following statements are true or false :

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   1. Domestic waste includes waste from household preparation, waste paper etc.
   2. Mining waste includes earthy material, rocks, coal etc.
   3. Agricultural waste includes packing waste, office waste, cafeteria waste etc.
   4. Municipal waste includes farms, roots and stems etc.
   5. Industrial waste includes non process and process waste

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   6. Packing waste includes jute, paper board, plastic etc.
   7. Medical waste includes pathogens, solid cotton, dressings lines etc.
   8. Ocean dumping is practiced by many river cities . 8

3. (A) Match the following :

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   A	B
   3.1 Acid Rain	(a) CO₂, CH₄ (methane), O₂ in air
   3.2 Air Pollution	(b) Chlorofluorocarbons [CFCs]
   3.3 Ozone Layer	(c) Foreign particles, gases and other materials
   3.4 Greenhouse Gases	(d) Oxides of nitrogen and sulphur 4

   (B) Write :

   1. Control of Noise Pollution.
   2. Effect of Noise Pollution. 4

4. (A) Write in one or two sentences:

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   1. Medicinal importance of garden.
   2. Effect of green revolution on environment.
   3. Tika disease of plant.
   4. Pest — Aphid effect on plants. 4

   (B) Write on the following medicinal plants :

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   1. Aloe-vera plant
   2. Neem tree. 4

5. Write in detail about structure and functions of ecosystem.

   OR

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   Write in detail about rights and duties of citizen for environmental protection. 8

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