Download PTU B.Sc-MLS 2020 March 6th Sem 71057 Environmental Sciences Question Paper

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Roll No. HEEEEEEEEEEE Total No. of Pages : 02

Total No. of Questions : 09

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B.Sc.(MLS) (2014 to 2017) (Sem.-6)

ENVIRONMENTAL SCIENCES

Subject Code : BMLS-601

M.Code : 71057

Time : 3 Hrs. Max. Marks : 60

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INSTRUCTION TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students has to attempt any FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students has to attempt any TWO questions.

SECTION-A

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Q1. Write briefly :

1. Give two harmful effects on humans beings due to Ozone layer depletion.
2. What is the necessity of rain water harvesting schemes?
3. List urban problems related to energy.
4. What is infectious material?

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5. What is full form of AIDS?
6. Define disaster management.
7. What do you mean by deforestation?
8. Define value education.
9. What is biological pollution?

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10. Write a note on nosocomial infections.

SECTION-B

Q2. Explain the various sources of wastewater and also discuss the physico-chemical characteristics of wastewater.

Q3. What measures can be taken to prevent soil pollution?

Q4. Write short notes on :

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1. Toxic Chemicals
2. HIV/AIDS in developing countries.

Q5. What is population explosion?

Q6. Enumerate and discuss the various causes of deforestation.

SECTION-C

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Q7. Describe the categories of waste and their disposal according to colour code bins.

Q8. Define hazardous waste. Discuss the different hazardous waste treatment methods.

Q9. Explain the various methods of controlling air pollutions.

NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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