Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
41. Which of the following pollutants are biodegradable in nature?
1. DDT
2. Salts of heavy metals
3. Radioactive substances
Select the correct option from the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 3
[D] None of the above
Show Answer
Correct Answer: D [None of the above]
Notes:
Biodegradable Pollutants are usually waste products, which are easily degraded by microbial action. Plastics, glass, DDT, salts of heavy metals and radioactive substances are all non-biodegradable in nature.
42. The Water (Prevention and Control of Pollution) Cess Act gives a polluter how much percentage of rebate in the applicable cess upon installing effluent treatment equipment?
[A] 50%
[B] 60%
[C] 70%
[D] 80%
Show Answer
Correct Answer: C [70%]
Notes:
The Water (Prevention and Control of Pollution) Cess Act which was passed in 1977 gives a polluter 70% of rebate in the applicable cess upon installing an effluent treatment equipment.
43. Which of the following is also called as soot?
[A] A poisonous gas
[B] Water repellent solvent
[C] Black carbon
[D] None of the above
Show Answer
Correct Answer: C [Black carbon]
Notes:
Black carbon (BC) also called as Soot is a solid particle or aerosol. It is not a gas still it contributes to the warming of the atmosphere. It is a form of particulate air pollutant which is produced from incomplete combustion.
44. Which of the following heads the National Disaster Management Authority(NDMA)?
[A] President
[B] Prime Minister
[C] Chief Minister
[D] Governor
Show Answer
Correct Answer: B [Prime Minister]
Notes:
The National Disaster Management Authority, which is also termed as NDMA, is an apex body of the Government of India which mandates to lay down different policies for disaster management. It is headed by the Prime Minister of India.
45. At which of the following places, Volcanoes are generally found?
[A] Intraplates crush against each other or pull apart
[B] Earth’s crust crush against each other or pull apart
[C] Tectonic plates crush against each other or pull apart
[D] None of the above
Show Answer
Correct Answer: C [Tectonic plates crush against each other or pull apart]
Notes:
Most of the volcanoes are present at the places where the tectonic plates crush against each other or pull apart. Sixty percent of all active volcanoes occur at the boundaries between tectonic plates.
46. Which of the following is a lake with low primary productivity as a result of low nutrient content?
[A] Eutrophic lake
[B] Oligotrophic Lake
[C] Mesotrophic lakes
[D] None of the above
Show Answer
Correct Answer: B [Oligotrophic Lake]
Notes:
The lakes which have low primary productivity as a result of low nutrient content are known as Oligotrophic Lake. These lakes have very low algal production therefore they often have very clear waters, with high drinking-water quality.
47. Which of the following statements are correct regrading Biopiracy?
1. It refers to the theft of genetic materials especially plants and other biological materials by the process of patent.
2. It is a situation where indigenous knowledge of nature, originating with indigenous people, is
exploited for commercial gain without permission and compensation.
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:
Biopiracy refers to the theft of genetic materials especially plants and other biological materials by the process of patent. It is a situation where indigenous knowledge of nature, originating with indigenous people, is exploited for commercial gain without permission and compensation.
48. Which of the following diseases are due to water pollution?
[A] Cholera
[B] Typhoid
[C] Both Cholera and Typhoid
[D] Neither Cholera Nor Typhoid
Show Answer
Correct Answer: C [Both Cholera and Typhoid]
Notes:
Waterborne diseases are conditions caused by pathogenic micro-organisms that are transmitted in water as Cholera and Typhoid. Cholera is an infection of the small intestine by some strains of the bacterium Vibrio cholerae. Typhoid fever is caused by bacterium Salmonella Typhi.
49. 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.
50. 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.
