Tamil Nadu Open University (TNOU) 2008 Certification Environmental Studies (CES) Human Environment - Question Paper

 

 

CERTIFICATE EXAMINATION JUNE 2008.

Certificate Programme in Environmental Studies

HUMAN ENVIRONMENT

Time : 3 hours Maximum marks : 100

This paper contain section A, B and C. Read the instructions carefully before answering the questions from each section.

SECTION A

All questions in this section is compulsory (Do not copy the full statements, write only the appropriate words as your answers).

1.         Fill in the blanks with appropriate words :
(5 1 = 5)

             (a) _____________ rates are those related to births, _____________ rates are those related to deaths.

             (b) The major Bones in marine ecosystem are littoral, neritic, _____________ and _____________.

             (c) In India the _____________ part of country experiences bitter cold where as _____________ part of country is warmer in winter.

             (d) Saline soils are _____________ to reclaim, while alkaline soils need a series of _____________.

             (e) Certain harmful wastes may pollute the
or create a hazard.

2.         Indicate whether the following statements are True or False : (5 1 = 5)

             (a) Increase in human population puts more pressure on land.

             (b) Pollutants present in soil do not affect growth of plants.

             (c) Eco system is a self sustaining unit of nature.

             (d) Efficiency is the ratio of useful output of energy in relation to input.

             (e) The plants are called autotrophs.

3.         Choose the correct words from the alternatives provided in the parenthesis : (5 1 = 5)

             (a) Economic activity is greatly affected/
not affected by total cultural environment.

             (b) Religious beliefs do not affect/direct affect environment.

             (c) Technology transfer (is/is not) a link in International trade.

             (d) Drinking underground water contaminated with (nitrates/chlorides).

             (e) The chilka lake is located in (Orissa/Bihar).

4.         Give the full form of the following abbreviations :
(5 1 = 5)

             (a) RAD

             (b) BOD

             (c) DDT

             (d) PKU

             (e) FAO

SECTION B

Answer any FIVE questions.

All questions carry equal marks.

5.         Write briefly in about 40 words in any FOUR of the following : (4 2 = 10)

             (a) Desertification.

             (b) Zooplankton.

             (c) Ecosystem.

             (d) Ozone.

             (e) Thermal pollution.

             (f) Algal bloom.

6.         Differentiate between any FOUR of the following :
(4 2 = 10)

             (a) Herbivore and Carnivore.

             (b) Macronutrient and Micronutrient.

             (c) Hypertension and Hypotension.

             (d) Commensalism and Mutualism.

             (e) Hibernation and Aestivation.

7.         Using clear neat labelled diagrams (or) flow charts only, represent any TWO of the following (no description is required) : (5 + 5 = 10)

             (a) Sulphur cycle.

             (b) Human activities and Environment.

             (c) Food chain.

8.         What is culture? Discuss the inter relationship between culture and Environment. (2 + 8 = 10)

9.         How does modern agriculture differ from
traditional agriculture? (10)

10.       Economic implication of changed environment Discuss. (10)

11.       Define ecological pyramids. Describe its various components. (10)

SECTION C

Answer any THREE questions.

All questions carry equal marks.

Answer each question in not more than 200 words.

12.       What is population? Describe the different characteristics with suitable example. (2 + 8 = 10)

13.       Describe water pollution? Explain the different types Freshwater, marine and ground water pollution.
(10)

14.       List out the important National parks and wildlife sanctuaries in India, with indications of some of the more important animals. (10)

15.       What are the advantages which voluntary agencies have in creating environmental awareness?
(10)

16.       Can you tell why infants and children are more sensitive to radiation than adults? Why are X-ray more harmful than ultra violet rays? (10)