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 empowered to designate air pollution areas and to prescribe the type of fuel to be used in these designated areas under the Air (Prevention and Control of Pollution) Act, 1981?
[A] Central government
[B] State government
[C] Union Ministry of Environment, Forest and Climate Change
[D] None of the above
Show Answer
Correct Answer: B [State government]
Notes:
State government is empowered to designate air pollution areas and to prescribe the type of fuel to be used in these designated areas under the Air (Prevention and Control of Pollution) Act, 1981.
42. Which of the following is the main reason for the melting of ice sheets?
[A] Increase in the oxygen content
[B] Global warming
[C] Decrease in the Carbon dioxide content
[D] Noise pollution
Show Answer
Correct Answer: B [Global warming]
Notes:
Global warming is defined as the average increase of Earth’s temperature due to natural as well as human induced reasons. Global warming increases the average temperature of the Earth resulting in the melting of ice caps.
43. Which of the following is/are the chief sources of Brown Carbon?
1) Biomass burning
2) smoke from agricultural fires
3) Vehicular Smoke
Select the correct option from the codes given below:
[A] Only 1 & 2
[B] Only 1 & 3
[C] Only 2 & 3
[D] Only 3
Show Answer
Correct Answer: A [Only 1 & 2]
Notes:
Brown carbon is brown smoke which is released by the combustion of organic matter along with black carbon. Some of the sources of Brown carbon are:
1) Biomass burning or domestic burning of wood.
2) smoke from agricultural fires
44. Which of the following are the dimensions for adaptation and mitigation under National Mission for Sustainable Agriculture?
1. Water Efficiency
2. Pest Management
3. Agricultural Insurance
4. Access to Information
Select the correct option from the codes given below:
[A] Only 1, 2 & 3
[B] Only 2, 3 & 4
[C] Only 1, 3 & 4
[D] 1, 2, 3 & 4
Show Answer
Correct Answer: D [1, 2, 3 & 4]
Notes:
The dimensions for adaptation and mitigation under National Mission for Sustainable Agriculture are as follows: 1. Improved Crop Seeds, Livestock and Fish Culture, 2. Pest Management, 3. Water Efficiency, 4. Improved Farm Practices, 5. Nutrient Management, 6. Agricultural Insurance, 7. Credit Support, 8. Markets, 9. Livelihood Diversification and 10. Access to Information
45. Which of the following are the primary goals of Sustainability?
1) To end poverty and hunger
2) To provide better Education.
3) To achieve gender equality
Select the correct option from the codes given below:
[A] Only 1
[B] Only 2 & 3
[C] Only 1 & 2
[D] 1, 2 & 3
Show Answer
Correct Answer: D [1, 2 & 3]
Notes:
To achieve Sustainability, United Nations General Assembly stout the agenda 2030 to achieve the 17 goals. It includes:
1) To end poverty and hunger
2) To provide better Education.
3) To achieve gender equality
46. The Western Ghats traverse the States of ?
[A] Karnataka
[B] Kerala
[C] Gujarat
[D] All of the above
Show Answer
Correct Answer: D [All of the above]
Notes:
The Ghats traverse the States of Kerala, Tamil Nadu, Karnataka, Goa, Maharashtra and Gujarat.
According to the new report by the International Union for Conservation of Nature (IUCN) namely “IUCN World Heritage Outlook 3”, India’s Western Ghats are threatened by population pressure, urbanization and climate change. The site is regarded as of significant concern.
47. Which of the following does not cause pollution?
[A] Burning of rubber
[B] Use of solar energy
[C] Burning of petrol
[D] All of the above
Show Answer
Correct Answer: B [Use of solar energy]
Notes:
Solar energy does not generate waste or contaminate water, or cause any pollution—an extremely important factor given the scarcity of water. Unlike fossil fuels and nuclear power plants, wind energy has one of the lowest water-consumption footprints, which makes it a key for conserving hydrological resources.
48. Which among the following represents plateau phase in population?
[A] Birth rate and Death rate are equal
[B] Birth rate and death rate are not equal
[C] Birth rate is higher than death rate
[D] Death rate is more than birth rate
Show Answer
Correct Answer: A [Birth rate and Death rate are equal]
Notes:
During the plateau phase, population size is constant so no more growth occurs. This is the result of natality rate being equal to mortality rate and is caused by resources becoming scarce as well as an increase in predators, diseases and parasites.
49. Where is the Vikramshila Gangetic Dolphin Sanctuary situated?
[A] Haridwar
[B] Bhagalpur
[C] Allahabad
[D] Visakhapatnam
Show Answer
Correct Answer: B [Bhagalpur]
Notes:
The Vikramashila Gangetic Dolphin Sanctuary (VGDS) resides in Bhagalpur district, Bihar, covering about 50 km along the Ganges. It holds the distinction of being India’s only sanctuary for its national aquatic animal, the Gangetic dolphin. The Ministry of Environment, Forest, and Climate Control (MoEFCC) declared the Gangetic dolphin as the National Aquatic Animal of India and launched the Ganges River Dolphin Conservation Programme in 1997 – a testament to its dedication to preserving this unique species.
50. Which of the following Colour coded weather alert is issued by IMD when there is a chance of more than 20 cm rainfall in 24 hours?
[A] Green
[B] Orange
[C] Red
[D] Yellow
Show Answer
Correct Answer: C [Red]
Notes:
The Indian Meteorological Department (IMD) uses a color-coded alert system for weather events. A green alert indicates no action is required. A yellow alert signals potential rainfall of 6-11 cm in 24 hours, while an orange alert indicates heavy rainfall of 6-20 cm. A red alert warns of extremely heavy rainfall exceeding 20 cm in a 24-hour period.
