03385

No. of Printed Pages : 7

BACHELOR'S DEGREE PROGRAMME/CES

Term-End Examination

June, 2010

(APPLICATION ORIENTED COURSE)

AHE-01 : HUMAN ENVIRONMENT

AHE-01

Time : 3 Hours Maximum Marks : 100

Note : Attempt 9 questions in all. Question no. 1 is compulsory.

1. (a) Fill in the blanks : 6

An area dedicated to conserve the environment, natural and historicalobjects and where private rights are non existent is called

The modern intensive agriculture would have adverse impact on

The Stockholm conference was held in the year

Energy movement in ecosystem is

The population histogram of rapidly growing population would have base.

The control of pests by using their natural enemies is called

(b) Define the following terms : 5

Cirrhosis

Fetal alcoholic syndrome

Vehicle transmission of disease agent

Nitrification

(v) Halophyte

AHE-01

1 P.T.O.

(c) Indicate whether the following statements are true or false : 5

Conservation involves not only the scientific but ethical, moral, economicand political aspects as well.

It is not necessary to plan beforehand how land is to be used.

Polluted environment has been responsible for a new group of diseases

known as cancer.

Persons dependent on drinking water contaminated with toxins retain smallquantities of it due to bio accumulation.

(v)

Modern agriculture has brought in enormous increase in production andalso caused great damage to natural balance of ecosystem.

(d) Give answer in one word/sentence only. 4

Soils that contain excessive amount of sodium carbonate and sodiumbicarbonate.

The process by which large number of people become permanently

concentrated in small area forming cities.

The agency that has contributed to environmental protection in Kerala.

High-temperature oxidation of liquid or solid wastes, converting them intogases and an incombustible residue.

2. (a) Diagrammatically represent global carbon cycle. 3

What is "Green House Effect" ? Explain how it affects the environment. 3

What are toxins ? Give any two examples. Differentiate between acute and 4chronic effects of toxins.

3. (a) With reference to wildlife conservation, discuss any two reasons for saving 5endangered species.

(b) Discuss briefly the drawbacks in environmental legislation by citing a suitable 5example.

AHE-01 2

4. Differentiate between any four of the following pairs :

Pyramid of biomass and Pyramid of energy.

Weather and Climate.

Bronchospasm and Chronic Bronchitis

Supportive capacity and Assimilative capacity.

(e) Waste minimisation and Waste utilisation.

4x21/2=10

(a) What are the effects of alcohol and drug abuse on human health ? Discuss briefly. 5

(b) How has the excessive use of fertilizers affected the modern agriculture ? 5

List four types of degraded land. Suggest various methods for the improvement ofland quality. 2+8=10

7. (a) Explain briefly, how human activities affect biota of our planet. 5

(b) Briefly discuss different causes of marine water pollution. 5

8. "It has become more and more important to have concern about our environment". 10Justify this statement.

What is desertification ? How have human activities resulted in the formation of deserts 10of recent years ?

Write short notes on any two : 5+5=10

Biomagnification

Niche

(c) Eutrophication

(d) Acid rain

AHE-01

3 P.T.O.

AHE-01 4

7ufai chitisn44/1#.1.71'.

79', 2010

1416_,q014-1

: 1-111 41 41 CHUI

;r74'77 : 3 ETU 3T.ATWri 31W : 100

*T: fff 9 3777 WbW7/ 3777 1-It:q1 1 31f9-474

1. (a) krb : 6

(i)

4r 44,Rur, -97MT * kion -ruk Trzrftfff t

1:1 ,71"t 31 3-4 chlte 3-TF t ct)clicif t

74.717 1 1 ,-1" -*-1 tri Titt-7 3-11:17 411( I

. 1 0116-1 k1-f 1 plr 2rr

Tfrfici I 14 6,11 *i

;‘,11 -Td1- ,r-m .(y4r* 3174-diqq 3TRTR t

(vi) 3-if alit 4)1d -91-74 -V-11 cr,cflcif ti

(b) ,AriciTrrIm 001 : 5

AHE-01

5 P.T.O.

(c) -1 4-1 T217 tali t qc-id qq iN : 5

(I)

Mawr 14 7 t-4 . -flFcr tint t, ii km,licict) trt-q

7FFIT9

1-Tr-q T riik-rs *R t 77-4-41 i if A q -u-ir 3-II cRi cI-) t I

311-17ff clIcH elk uT -ff7 If-*744 1:311-1)qltt t7:1T-W t I

414 aufait r4.7 Air -ER fi lfT 71{-17 la--4-clq.-f

gRf per 1-INE aTIfq-Ef ‘311df t- I

3111-PT TftT =t 6c4K-f -4To :7-4-dt t Am. -9rfrd

0-ff I

(d) 11'1 t_q-) t, arT4 drR : 4

(i) lqf 1*1-14 37114.11 F814-1 chi q :I' d 31).7 -lifs q4-f 61or •

(ii)"r7T1-4 irrif-tT TEr -A -qv 3-Trw 4(sir &fr-T

t-T- 4-411tur ATKF fqzfr t I

6-,4 71:1 1:17 3f(T d1 N 3TER-1154m1 3ff-4*-*-Pir 5RT o 3fT*ff

Gi qclif I

2. (a) 3T1M 41 V=1.3—d-ITT uT1-11--I 3

" Thi-Trd" -# 377 TEff ?fib ? Tff Ll q icit u f 'T fTTI. TrilTd sicidr t? 3

-1 1-1-11 1 I

3TIFT=1 f 6q1k f TR. I 3TWI qicb -P-Tra fa .4 4

3. (a) ci-4 7179 k-iq-}dA,,d cl *Rio' 5

1;1 I

(b) 411 010f trig t V qtr 71-4i f*-#1 -1 6( 1-11 51M Tffuti -44 m-tf'A7 I 5

AHE-01 6

4.I(Ai 4 4 fw'w?- 4 fad : 4x21/2=10

zi)4- 117 T RiVHs 3tr{

,3-1 r,11Iq AT 4144

wit TR-1-7 sft u .ir-Taut 742.1.

tai lu f 1 VIR-di (Supportive capacity) 3-t -EMT4 ch1 WIT (Assimilative capacity)

(e) 31":1#17 -1-6141 c 01 371#7air 79-erri

(a) HI-14 fl-T-Pzi tl-T 7.171-q Silt -9711- 1 q(113-11 134-11-d)' m1 TATli -14 -1r-7TT, I 5

(b) 31T19-T. Tfisf 71-{ fr"+74 Sl ohlt 34T4 al-M Wf 7414 951 ? 5

74iT si cbit 9.P1 191-TP71 h1 1 I IS obl Tr-4T t Tirt t tcrfiT-4 fat** bra

1-1',3K I 2+8=10

7. (a) 11-1T74.21 Itli t174if*74 -5FR 71ft lA7..k \l c( •TI1c1 .1:17 .51 %Tl-q 51c-11 *Ill 4 5

(b) TTIP -57i1JT fqf*I - Ruffm1 TAM uuf --r77 I 5

s. " wilak u r .R-r -a f r 3Tf r 7 1 t" tzr7 ,3-11rucq-4.-drR

10

9. 1,i -T-2.1-ffIWTITI 3-Trtr ,H 1-11C:t t? qtT9 •Af—A-R rah fT srmrt HI-14 I lroraftrzff t LiFoiii-ft.ft g 10

&7-7 Tr{ Tffkiff fal7rt f9f7g7 :

Ad 31T-dttff

f9t7

31fdtrfuf

3TPr qtI

5+5=10

AHE-01 7