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 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.
42. European Union Emissions Trading System was launched in which of the following year?
[A] 2001
[B] 2003
[C] 2005
[D] 2007
Show Answer
Correct Answer: C [2005]
Notes:
The European Union Emissions Trading System (EU ETS), was the first large greenhouse gas emissions trading scheme in the world. It was launched in the year 2005 to fight global warming.
43. Which of the following are the branches of sustainability?
1. the environment
2. the needs of present and future generations
3. the economy
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 branches of sustainability include the environment, the needs of present and future generations and the economy. Sustainable development is the type of development that meets the needs of the present generations without compromising the ability of future generations to meet their own needs.
44. Which of the following organization is the apex authority of disaster management in India?
[A] CDMA
[B] NDMA
[C] INDR
[D] None of the above
Show Answer
Correct Answer: B [NDMA]
Notes:
The National Disaster Management Authority (NDMA) is the apex statutory body that makes policies for disaster management in India. It was founded in 2005 and is headed by the Prime Minister of India.
45. Why do Mangrove trees have breathing roots?
[A] The roots prevent soil erosion
[B] To store oxygen up to 4 days
[C] The roots are the only place where photosynthesis is done
[D] To obtain oxygen from the air
Show Answer
Correct Answer: D [To obtain oxygen from the air]
Notes:
The trees of mangrove forest having
breathing roots, which are usually very large to stand in deep mud. The necessity of Mangrove having breathing roots is to obtain oxygen from the atmosphere, while the soil in which mangroves grow are poor in oxygen.
46. What was the main aim of Ramsar Convention?
[A] Bio-diversity Conservation
[B] Global Warming
[C] Conservation of wetlands
[D] Climate Change
Show Answer
Correct Answer: C [Conservation of wetlands]
Notes:
The Convention on Wetlands, called the Ramsar Convention, is an intergovernmental treaty that provides the framework for national action and international cooperation for the conservation and wise use of wetlands and their resources. It is named after the city of Ramsar in Iran, where the Convention was signed in 1971.
47. What is green house effect?
[A] Turning of house green because of algae cover
[B] Warming of earth because of trapping of radiations by the earths atmosphere
[C] Turning of house green because of green component of white light
[D] None of the above
Show Answer
Correct Answer: B [Warming of earth because of trapping of radiations by the earths atmosphere]
Notes:
The greenhouse effect is the process by which radiation from a planet’s atmosphere warms the planet’s surface to a temperature above what it would be without its atmosphere. It caused by the presence of water vapour, carbon dioxide, methane, and certain other gases in the air.
48. Which of the following is a Floating National Park of India?
[A] Similipal
[B] Namdapha
[C] Eravikulam
[D] Keibul Lamjao
Show Answer
Correct Answer: D [Keibul Lamjao]
Notes:
The Keibul Lamjao National Park is a national park in the Bishnupur district of the state of Manipur in India. It is 40 km2 (15.4 sq mi) in area, the only floating park in the world, located in North East India, and an integral part of Loktak Lake.
49. Heard and McDonald Islands belong to which country?
[A] Australia
[B] United Kingdom
[C] New Zealand
[D] France
Show Answer
Correct Answer: A [Australia]
Notes:
The Heard and McDonald Islands are located in the sub-Antarctic region and serve as external territories of Australia. These volcanic islands, discovered in the 1850s by American mariners John Heard and William McDonald, were proclaimed as a UNESCO World Heritage site in 1997. These islands, recognized for their unique wildlife and geology (including active volcanoes), are considered one of the world’s most remote places. Initially claimed by the UK in 1910, they were transferred to Australia in 1947, hence, the land boasting the highest mountain under Australian sovereignty.
50. What are the permitted ambient noise limits (dB) for a silence zone during day and night, as per the Noise Pollution (Regulation and Control) Rules, 2000?
[A] 50 and 40, respectively
[B] 50 and 60, respectively
[C] 60 and 50, respectively
[D] 40 and 30, respectively
Show Answer
Correct Answer: A [50 and 40, respectively]
Notes:
The Noise Pollution (Regulation and Control) Rules, 2000, framed under the Environment (Protection) Act, 1986, stipulate ambient noise limits. For a silence zone, the permitted limit is 50 dB(A) during the day and 40 dB(A) during the night. Day time is defined as 6:00 a.m. to 10:00 p.m., and night time is 10:00 p.m. to 6:00 a.m.
