- PGRR CENTRE FOR DISTANCE EDUCATION

OsltlaniaUnhersSty:Hyderabad -S008(M

ENVIRONMENTAL STUDIES, ASSIGNlblENT 2nD YEAR

(ANSWER SHEET) 94- Roll No. ......................................... Name ....................... .... ......-...........................-.....-.----------------

41. ...................... 42. ...................... 43. ........................ 44 ........................ 45.. ................... ... ........................ ......................... ...................... 46. ...................... 47. ...................... 48. 49 50.

Please write a or b or r or d against each question.

I Signature I

ENVIRONMENTAL STUDIES &A/B.Com/B.B.A - 11 Year

RECEIPT

1. Name of the Candidate

Pnq 4) Tick against the ehqiee of the course

Section Seal Receiver Signature

PGRR CENTRE FOR DISTANCE EDUCATION Osmania University : Hyderabad-7 .

.-* . . .

We are send~ng herewith an assignment questions to be answered by you on the subject Enviornmental Studies In l~eu of University Examination of the same. However, the marks you obtain, will have fo be forwarded to the Controller of Examinations, O.U. for inclusion in your Marks Memo. Without these marks your result will not be announced and even if announced, by oversight, it is incomplete.

Please write your Hall Ticket Number (Enrolment No.) at the place provided on Answer Sheet without fail.' Otherwise the script sent by you will not be Valued.

i You are therefore advised to answer the assignment questions on. the sheet attached and also return both immediately, so as to reach the Dire'ctor CDE on or before .......................... .. ........... ............................ .--. ~7 ' .? * .

..A * Roll No. 94- ....................... w*.=y-u . MRECTOR

Name 8 Address : ..&d -

ASSIGNMENT 2nd YEAR

Please Indicate the correct answer on the answer sheet attacted. All questions carry equal Marks.

The subject Environmental Science is concerned Producers are also known as Max. Marks : 50

with (a) Autotrophs (b) Heterotrophs (a) lnteraction between people 8 Environment . (c) Both (d) None (b) lnteraction between Schools (c) Interaction betvveen Colleges (d) lnteraction between Offices

(a) ts,- (b) ==a- / I-.;

lSlqSj6 &3 606 EX&@ t%OPJo@o

• &oa~ !c) s- (dl 6 - 3 6. Solar energy is converted to chemical energy by,

(a) w-d;Jc5Qowp (a) Animals (b) -Plants I

. (c) sthaem q 2 6 o (c) ~ac)rines (d) All the above

2. Humans rely on the natural environment for the (a) (b) following (a) Politics (b) Survival

(c) -- ( 4

(c) Socio Economic factors(d) None 7. Ecological pyramids mainly are of . types

2. ~ ~ ~ 3 ~ ~ ~ ~ ~ ~ . (a) 2 (b) 3

(a) oaesQcsxm (b) &-wl~&beu - - . r , ( ~ ) ' . 1 (d) 4

(c) i3-dm-s W~beu (d) ads B@ -ir?S* ~ a g a o ~ anq&- ... tssw, L

3. The term Ecosystem was coined by (a) 2 (b) 3

(a) Aristotle (b) Obama (c) 1 (d) 4 . . , ,

(c) A G. ~ansley (d) Leuis Pasteur 8. The areas of the earth which receive less than 25 cm or 10 inches of rainfall.

3. &-€a q+@e.n e93 sJa&sb 6cSYacb 3w (a) Grassland (b) Forest

(a) (b) e s s 5 J a (c) Aquatic Systems 'ld) Desert (c, '9.a &@ (dl - -6

4. The major aspects of Ecosystem are

(a) Structure and Functian (b) Structure (c) Function (d) None . & Abiotic comp~n@nt include which environmental

. factors. :(a). .Npn Living (b) Living

The variety of living organisms & different ecosystems is termed as (a) Biodiversity iw Botanical Gardens (c) Conservatbn' . , None

Endangered species are on the verge of (a) Extant (b) Extinct (c) Both a & b (d) None

(a) SmmQ (b) (c) 1 &6~t553 2 (d) St%

lnsitu consenr@fon refers to the coriserva'tion of species within

(a) ' 'h&u&l kabitat (b) Artificial Habitat ('c) Bath (d) None

idthe process which turns productive land into nonproductive . - deserts (a) AfforesWn (b) Natural Process (c) Dese-tion (4) All

(a) * - (b) m (C)* ximv3- (d) +

Imbalance in the quality of Air is

(a) Water Pollution (b) Soil Pollution (c) Air.Pollution . (d) Noise Pollution

(c) -s-qp ( 4 %iD-"f-p

Pallution that comes from large areas is cal

(a) Non-Point source Pollution (b) Point Source Pollution (c) Both (d) None

B m ,jib. .:, G

( 8 ) &-*- (W -*-,. (c ) ao& (dl W A d d rains are caused Q y 'n , Car SO2 , - . (hi N& L.. (c) Both le

I L

Products of Photochemical smog are (a) Haze . ' . 0) W ~ n g Oxidants (c) Aldehydes (d) All 6&a%d&6 @,mzb?

(a) - (b) - Q494 (c) cr.>osBI3 (d) q Indoor Air PoUution causes following diseases (a) Respiratory (b) Nervous (c) Reproductive (4) All

Ecological Balance is disturbed due to

(a) Water Po!iution (b) Nervous . (c) Reproductive (d) All

Any altemhn in aquatic bodies which has a negative affect on apnatic organisms.

(a) Noise Pollution (b) Water Pollution (c) thermal Pollution (d) Soil Pollution

Accumulation of Chemicals in w?&r , p i e s (a) Eutrophication (b) Tl?gq& Pollution (c) Both (d) NOW' . L . 4

Corrosion of Taj Mahal is due to

(a) SO2' (b) P10, (4 -CQ, (d) -CO Humn ,being.breath in Q,and give out

(a) 0, (c) Pz . ,, .

@a $g -....... "..

(4 _;sq%,:. - (d r !'a' -=2 . 011 SpUlZ % k i e g and $&kties are mainly

jp6klnEs'

('c) Noise (d) W&ne . .

(a) -90 (b) a- --s&o

(c) 9 -0 (d) - -

25. ~h&anted sounds that interferes with humans cornfbrt is referred as . pollution. . (g?: Water (b) Soil

: Noise (d) Thermal

25. ~~~~~~>

if0 ..',.., ".. E3waxgb eQiwtb.

Ca) (b) 3s (c) * (d) QrtB

26. The Earthworms are used in

(a) Cqmposting (b) Vermiculture (c) Horticulture (d) Both Aand C @&am--' "

(a). 9 6 (b) CC> =f2s~e (d) I ar;.rscxs;O . ' I , 3

27. ..r$Jplthy help in

(a) ~1earia7;' (b) Conserve Soil (c) Beautify landscapes (d) All

27. e~@t&W5$8-63 &08-

(a) 4 - (b) 3,;s~- :

(c) 906 i$&2#b eSOtSO(Ts' Zkk~o6

(d) '4 ,

(a) Ocean negetively (b) Increase in water temperature (c) Increases 0, level (d) All

32. Increase in earth's temperature is

(a) Geology (b) Geography (c) Global warming (d) None

33. Acid rain has PH level (a) c5.6 (b) > 5.6 (c) = 5.6 (d) 6.5

33. . 4 9 Q q c r B w , . ~ a - ~ ~ ~ (a) e5.6 (b) > 5.6 (c) =5.6 (d) 6.5

34. UV ray4i are absorbed by layer

(a) so, (b) SO, (c) aerosols (dl C(O,)

34. axDd,. &t%wi63 .. W.........." w tE&pdma (a) SO2 (b) CO (d) 02 (c)

35. Ozone layer i.; depleting due to (a) LFC'S (b) Hitogerrs (c) Aerosols (d) All

Waste Manqgemm work (a) Reduction (b) (c'f A and I3 (d)

%g-y-%zJsa

(a) =q+ Cb) (c) 1 & 2 (d)

By which methods the soil and made pertile (a) Cornposting (b)

towards cfnZ5-a~- Reuse and recyclin None

(c) =?&

a- * ical Impact Assessment (b) Economical lmpact Assignment

conditions are improve - (c) Envirdnmental Impact Assessment (d) Enthusiastic Impact Assessment

(c). Sericutture (d) Horticulture 36: a.b3.d W-

29. C$3 & p m %us @Gmq ~~~ (a) -B = q 2 asbs%&s amaq*-Tbw (b) -6 €20- A (a) e- CW- a.?@@ .

(c) . cax&- glo* -B

(4 /dl (dl =* ci)-

Pathokgiml wastes ara .k@gus bscause 37. Environmental Audit helps in control of

(a) Environmental Problems (a) Their Potential for, &pWdriq~ disegse (b) Urbanization (b) Their Potential far sprt%&ng dksease (c) ' Industrialization (c)' heir Potential for E$kadinp more wastes (d) None (d) FLom . .

37. aq,atS* esSQ c@~Q*) ..,,...&'.,, 6 2 es'fk60g" 30. &b && %v 3-

.-@j :"* @b a- -

rC

(a) '(b) Qma 9 (b) *-

The Rio Declaration on Environment and 43 H: & Development supports (a) Agenda 24 (b) Agenda 33 (a)

(c) Agenda 22 (d) Agenda 21 (c) -

is a fossil fuel 38. 0 q a t W & & $ t D

(a) Coal R (b)* Solar energy (a) a o c a a 24 (b) 23 (c) Hydal energy (d) Thermal energy (c) e&m 22 (d) ~ B O G I P 21

39 44. --- c- -03

ia-the generic term for a cluster of agricultural and ecological activities in a river (a) @'Q (b) i?@6 4 catchment area designed to raise the ground water (c) w 4 (d) level and increase the natural water supply order to 45, get better crops.

is the basic level in food chain

(a) Watershed Managemet . (a) Green plants (b) Rabbit

(b) Rainwater Harvesting (c) Lion (d) Man

(c) Both 45. ....,,... es- RB-m iqpx (d) None (a) q p -w

39. .," ..,-,,....-. .. z%tswsh e x 5 6 q 6 x 5 z b o 6 ~ ~ ?&m (c) Iboa' (d) ~txvx!3y , 3 w a m o ~ - - 46.

---

Decompose the dead complex organic - - ----

a 0 0 ~ ~ ~ ~

(a) sPhd w -6 (b) =q4aM-s (c) (dl EQ2h 4 (a) w (b)

40. may be designed as Process of (c) m augmenting Rhe natural infiltration into the ground 47. by same artificial methods.

(a) Rarn water harvesting (c) Saturn

(b) Water~hed~Management (c) Afforestration 47. ............ ... ........... &om

(d) None (a) w (b) -* 40. ........... i5ae~ S$ab0 86 &b

b ~ o e ~ ~ g mmm w& %m 48. Inter linking of different food chains is k ~ I z i J * ~ & 3cabo (a) producers

(c) Food web (a) a&d5 StBQoZ5 (b) d ad ? i b s M (c) d d e - e s ~ l b (dl a* =+a

(3) Transport (b) Industries

(c) 69th (d) None

41. e ~ d ~ m S ~ ~ S W @ nm ~s-&o 36 a$, SQ&@06

(a) &m?s (b) -Be*- (c) ~~ (dl @&* Percentage of Oxygen in air

(a) 10% (c) 40%

-m -3- - (a) 10%

(c) 40%

is non bia

(a) Plastic (c) Jute

(b) 50% (d) 21%

a3eo

(b) 50% (d). 21%

jegradable

(b) Leaves (d) None

l l eddbwing is a natural resource

(a) Forest (b) Plastic '

(c) Scooter (d) Cement

Water is composition of (a) C+O (b) H,+O (c) C02+H (d) None

(a) C+O (b) H2+0 (c) C02+H (d) e m