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/are the impact of Climate change on Agriculture and food security?
1) Climate Change can affect crop yield
2) Arable land along the coastlines will be reduced as a result of rising sea levels.
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:
Climate change poses a great threat to Agriculture and food security as Climate Change can affect crop yield as well as the types
of crops that can be grown in certain areas. It can also affect the Arable land present along the coastlines as the land will be reduced as a result of rising sea levels.
42. Which of the following is/are the objectives of Disaster Management?
1) Mitigation
2) Reconstruction
3) Rehabilitation
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:
Disaster Management is a combination of strategic planning and procedure which helps us from severe damages when natural or human-made calamities and catastrophic even occur. It includes Mitigation, Reconstruction, and Rehabilitation.
43. Which of the following statements are correct about the process of scoping Environment Impact Assessment?
1. It is a process of detailing the terms of reference of EIA.
2. Quantifiable impacts are to be assessed on the basis of factors like magnitude, prevalence, frequency and duration.
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:
Scoping is a process of detailing the terms of reference of Environment Impact Assessment. Quantifiable impacts are to be assessed on the basis of factors like magnitude, prevalence, frequency and duration.
44. Which of the following statements are correct regarding Environment Impact Assessment?
1. Screening is done based on type and location of development only.
2. The state of ecosystem as it exists prior to the project and its potential effects is known as Baseline Data.
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: B [Only 2]
Notes:
The screening criteria is based upon the scale of investment, type of development and location of development. The state of ecosystem as it exists prior to the project and its potential effects is known as Baseline Data.
45. 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.
46. Absence of fish along a river indicates _____:
[A] Zone of active decomposition
[B] Zone of degradation
[C] Zone of recovery
[D] All zones of pollution
Show Answer
Correct Answer: B [Zone of degradation]
Notes:
Absence of fish along a river indicates zone of degradation. This zone is found for a certain length just below the point where sewage is discharged into the river-stream. This zone is characterised by water becoming dark and turbine with formation of sludge deposits at the bottom. D.O is reduced to about 40% of the saturated value.
47. 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.
48. Which country is separated from India by a narrow channel of sea formed by Palk Strait and the Gulf of Mannar?
[A] Sri Lanka
[B] Bangladesh
[C] Pakistan
[D] Myanmar
Show Answer
Correct Answer: A [Sri Lanka]
Notes:
Sri Lanka is separated from the mainland portion of the Indian subcontinent by the Gulf of Mannar and Palk Strait. It is an island country in South Asia, located southeast of India and northeast of the Maldives.
49. 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.
50. Which national park hosts the largest ice cap aside from those in Antarctica and Greenland?
[A] Los Glaciares National Park
[B] Yosemite National Park
[C] Banff National Park
[D] Zion National Park
Show Answer
Correct Answer: A [Los Glaciares National Park]
Notes:
Los Glaciares National Park in Argentina hosts the largest ice cap outside Antarctica and Greenland. This UNESCO World Heritage Site, established in 1937, spans over 726,927 hectares and is home to 47 active glaciers, including the well-known Perito Moreno Glacier. Divided by Lake Argentino and Lake Viedma, the park holds the scenic Mount Fitz Roy and Cerro Torre in its northern segment. The park’s varied ecosystem sustains unique species and attracts over 688,000 visitors every year, making it a favorite among nature lovers and providing a crucial research site for scientists studying climate change.
