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 is not the impact of Global warming?
[A] Rise in Sea level
[B] Bleaching of Coral Reefs.
[C] Widespread vanishing of animal populations
[D] Shifting of magnetic axis of earth
Show Answer
Correct Answer: D [Shifting of magnetic axis of earth]
Notes:
Global warming is an average increase in the temperature of the atmosphere which can contribute to changes in global climate patterns. Rise in Sea level, Bleaching of Coral Reefs, and Widespread vanishing of animal populations are some of the impacts of Global Warming.
42. Which of the following human activity has influenced global warming?
[A] By causing changing in gravitational force
[B] By planting more trees
[C] By changing the radiative balance governing the Earth
[D] By protecting environment
Show Answer
Correct Answer: C [By changing the radiative balance governing the Earth]
Notes:
Different Human activities ranging from the burning of fossil fuels to cutting of trees has influenced global surface temperature by changing the radiative balance governing the Earth on various timescales.
43. Which of the following is/are the sources of Black carbon?
1) Biomass burning,
2) Cooking with solid fuels, and
3) Diesel exhaust
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: D [1, 2 & 3]
Notes:
Black carbon is a component of fine particulate matter which is produced by the incomplete combustion. Some of the prominent sources of Balck carbon are:
1) Biomass burning,
2) Cooking with solid fuels, and
3) Diesel exhaust
44. Which of the following gas acts as the baseline for other Global warming potential values?
[A] Methane
[B] Carbon dioxide
[C] Sulfur hexafluoride
[D] Water vapour
Show Answer
Correct Answer: B [Carbon dioxide]
Notes:
The concept of Global Warming Potential (GWP) was developed to allow comparisons of the global warming impacts of different gases. Carbon dioxide (CO2) has a GWP of 1 and it serves as a baseline for other GWP values.
45. 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.
46. 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.
47. Which of the following is the intentional release or dissemination of biological agents?
[A] Bioleaching
[B] Genetic erosion
[C] Bioterrorism
[D] None of the above
Show Answer
Correct Answer: D [None of the above]
Notes:
The intentional release or dissemination of biological agents is known as Bio-terrorism. These agents of bio-terrorism include bacteria, viruses, or toxins, and may be in a naturally occurring or a human-modified form.
48. Environmental pollution can be controlled by _____:
[A] Sewage treatment
[B] Manufacturing electric vehicles
[C] Checking atomic blasts
[D] All of the above
Show Answer
Correct Answer: D [All of the above ]
Notes:
Checking atomic blasts will reduce radioactive pollution. Sewage pollution can be prevented by treating sewage before passing into water course, in sewage treatment plant or effluent treatment plant (ETP). Electrically operated vehicles will control automobile exhaust and improve the air quality in cities. Environmental pollution can be controlled by treating factory wastes before disposing of them. So, if we treat wastewater before disposing of in a river, it will surely decrease the amount of dumped pollutants. For example- Steel industries have a high concentration of cyanide in it, and it led to harmful effect. So, treatment is really necessary.
49. The potential for air pollution typically increases when the ventilation coefficient is which of the following?
[A] Greater than 11,000 m2/s
[B] Greater than 7,600 m2/s
[C] Less than 3,600 m2/s
[D] Less than 6,000 m2/s
Show Answer
Correct Answer: D [Less than 6,000 m2/s]
Notes:
The ventilation coefficient (m2/s) is a product of maximum mixing depth and average wind speed. It is used as an indicator of the atmosphere’s dispersive capability. High potential for air pollution is generally associated with ventilation coefficient values of less than 6000 m2/s, as established by researchers Portelli and Lewis in 1987.
50. Garampani Sanctuary is located at ______:
[A] Diphu, Assam
[B] Gangtok, Sikkim
[C] Junagarh, Gujarat
[D] Kohima, Nagaland
Show Answer
Correct Answer: A [Diphu, Assam]
Notes:
Garampani Wildlife Sanctuary is located in Karbi Anglong district, Assam. It is located at 92 km from Diphu. It is one of the oldest sanctuaries containing hot water spring and waterfalls and surrounded by Nambor Sanctuary having 51 rare species of orchid.
