Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
41. The Screening Criteria under Environment Impact Assessment are based upon which of the following?
1. Scales of investment
2. Type of development
3. Location of development
Select the correct option from the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: D [1, 2 & 3]
Notes:
The Screening Criteria under Environment Impact Assessment are based upon the following:
1. Scales of investment
2. Type of development
3. Location of development
42. Which of the following statements are correct regarding Impact prediction in EIA?
1. It is a method of mapping the environmental impacts of the significant aspects of the project and its alternatives.
2. Environmental impact can be predicted with absolute certainty.
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 & 2
Show Answer
Correct Answer: C [Both 1 & 2]
Notes:
Impact prediction in EIA is a method of mapping the environmental impacts of the significant aspects of the project and its alternatives. Environmental impact can never be predicted with absolute certainty.
43. Karnataka lies in which of the following biogeographic realms?
[A] Palearctic
[B] Indomalayan
[C] Australasia
[D] Neotropic
Show Answer
Correct Answer: B [Indomalayan]
Notes:
Karnataka lies in Indomalayan biogeographic realm.
44. Which of the following gas is most harmful for ozone layer?
[A] Carbon dioxide
[B] Chlorofluro-carbon
[C] Nitrogen oxide
[D] Sulphur dioxide
Show Answer
Correct Answer: B [Chlorofluro-carbon]
Notes:
Chlorofluorocarbons (CFCs) are nontoxic, non-flammable chemicals containing atoms of carbon, chlorine, and fluorine. They are used in the manufacture of aerosol sprays, blowing agents for foams and packing materials, as solvents, and as refrigerants. Because CFCs contribute to?ozone?depletion in the upper atmosphere, the manufacture of such compounds has been phased out under the Montreal Protocol.
45. The presence of pollutants in the environment is usually expressed in ppm, where ppm stands for ____:
[A] Particles per mole
[B] Purity per microgram
[C] Pollutant prevent measures
[D] Parts per million
Show Answer
Correct Answer: D [Parts per million]
Notes:
PPM is an abbreviation of Parts Per Million. It is commonly used as a measure of small levels of pollutants in air, water, body fluids, etc. Parts per million is the mass ratio between the pollutant component and the solution.
46. Green House Effect means _____:
[A] Cultivation of crops in green house to conserve heat
[B] Trapping of solar energy due to carbon dioxide gases
[C] Trapping of solar energy by earth upper surface
[D] Increase of heat due to atmospheric pollution
Show Answer
Correct Answer: B [Trapping of solar energy due to carbon dioxide gases]
Notes:
Green House Effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric green house gases and is re-radiated in all directions. It results an increase in average temp of the planet.
47. What was the main aim of Montreal Protocol?
[A] To reduce the use of automobiles.
[B] Trading of carbon dioxide emissions.
[C] To reduce the emissions of greenhouse gases.
[D] To reduce the production of ozone destroying agents like CFCs and Halons.
Show Answer
Correct Answer: D [To reduce the production of ozone destroying agents like CFCs and Halons.]
Notes:
The Montreal Protocol on Substances that Deplete the Ozone Layer is an international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion. It is a protocol to the Vienna Convention for the Protection of the Ozone Layer. It entered into force on 1 January 1989.
48. Guru Ghasidas National Park is located in ______:
[A] Chhattisgarh
[B] Uttar Pradesh
[C] Madhya Pradesh
[D] Bihar
Show Answer
Correct Answer: A [Chhattisgarh]
Notes:
Guru Ghasidas National Park, formerly known as Sanjay National Park, is situated in Koriya district of Chhattisgarh. It has been named after the state’s Satnami reformist hero, Guru Ghasidas. A part of the Sanjay-Dubri Tiger Reserve, it is located in the Narmada Valley dry deciduous forests ecoregion.
49. What fraction of world’s fish species are provided shelter by Great Barrier Reef?
[A] 10%
[B] 25%
[C] 50%
[D] 75%
Show Answer
Correct Answer: A [10%]
Notes:
The Great Barrier Reef, a UNESCO World Heritage Site, is the world’s largest coral reef system, spanning 2,300 kilometers and covering 344,400 square kilometers. It is home to 10% of the world’s fish species, 400 types of coral, and six of the seven species of marine turtles. The reef is composed of over 2,900 individual reefs and 900 islands, with the widest sections reaching up to 65 kilometers. It is visible from space and supports a diverse array of marine life, including whales, dolphins, and sharks. The reef has been listed as one of the Seven Natural Wonders of the World since 1997. Despite its natural beauty, the reef faces threats from climate change, coral bleaching, and pollution, with UNESCO recommending it for the In Danger list due to these impacts.
50. Which country is home to Shark Bay, a designated World Heritage Site?
[A] Australia
[B] United States
[C] South Africa
[D] Brazil
Show Answer
Correct Answer: A [Australia]
Notes:
Shark Bay is an outstanding World Heritage Site located in Western Australia. It covers 2.2 million hectares showcasing gorgeous natural beauty and biodiversity, with 70% being marine waters. Known for its world’s largest collection of marine stromatolites, it plays host to threatened species like dugongs. The protected Bernier and Dorre islands are free from non-native animals. The site comprises France Peron National Park and Hamelin Pool Marine Nature Reserve. Its climate is semi-arid with hot summers and mild winters, and the coastline extends over 1,500km. Shark Bay was included in the World Heritage list in 1991 for its rich biodiversity and exemplary natural aesthetics.
