Kerala PSC Previous Years Question Paper & Answer
Page:5
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'ENVIRONMENTAL OFFICER' And exam conducted in the year 2017. And Question paper code was '027/2017/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
-Sink population
C:-Metapopulation
D:-Keystone species
Correct Answer:- Option-D
Question39:-According to WHO, maximum permissible level of fluoride in drinking water is ppm.
A:-0.3
5
C:-1.5
D:-1.0
Correct Answer:- Option-C
Question40:-The earthquake rated as major is with
Correct Answer:- Option-B
Question41:-Tsunami - literally means
A:-Giant waves
-Water wall
C:-Harbor waves
D:-Destructive waves
Correct Answer:- Option-C
Question42:-The energy transfer in the food chain is an example of
A--First
- 0
C:-Third
D:-Zeroth
Correct Answer:- Option-B
Question43:-The lakes which are poor in nutrients and productivity are
A:-Mesotrophic
B:-Very small
C:-Eutrophic
D:-Oligotrophic
Correct Answer:- Option-D
Question44:-Black colour of the black soils is due to the high content of
A:-Sodium
B:-Potassium
C:-Copper
D:-Humus
Correct Answer:- Option-D
Question45:-Which one is an example for a secondary air pollutant ?
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8:10 09:
C:-PAN
D:-CFC
Correct Answer:- Option-C
Question46:-Silent spring is a on
A:-Documentary, climate change
B:-Movie, Antarctica
C:-Book, melting of polar ice
D:-Book, pesticide toxicity
Correct Answer:- Option-D
Question47:-Abyssal zones are located in
A:-Ponds
B:-Rivers
C:-Lakes
D:-Oceans
Correct Answer:- Option-D
Question48:-The chemical reaction Cl +*0_)3(' > CIO + *O_(2)° results in
magnitude on Richter scale.
law of thermodynamics.
lakes.