Kerala PSC Previous Years Question Paper & Answer
Page:1
Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'ENVIRONMENTAL SCIENCE' And exam conducted in the year 2015. And Question paper code was '069/2015'. 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.
69/2015 (Pages: 4)
Maximum : 200 marks
Time : 1% hours
PART 1
Answer ALL questions. Answer in one word or a sentence.
Questions 1 to 30 carry 4 marks each.
1. Chemolithotrophs derive energy from :
(8) Sunlight
छ) Organic compounds
(८) The oxidation of reduced inorganic compounds
(प) Denitrification
2. The route of entry of polio virus is :
(8) Contaminated food (b) Contaminated water
(€) Blood transfusion (0) 210६0111 11168
8. Animals that feed on relatively large pieces of dead organic matter are called :
(a) Parasites . (b) Holozoons
(८) Predators (0 Macro consumers
4, Energy available in fuels is stored as :
(8) Heat energy (b) Chemical energy
(९) Atomic energy ல் _Explosive energy
5. Malaria is caused by :
(a) Nutritional deficiency in moist tropical regions
(b) A parasitic protozoan
(८) An allergic reaction صا mosquito bites
(0) Poor sanitary conditions
6, The Kyoto protocol entered into force in :
(೩) 2005 യു 2009
(0) 1997 (d) 2010
7. Which one of the following trees has medicinal value?
(a) Pine (0) Teak
(0) Neem (d) علدت
(0.1.0.]