Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
41. The Energy Conservation Act was passed in which of the following year?
[A] 1998
[B] 2001
[C] 2005
[D] 2015
Show Answer
Correct Answer: B [2001]
Notes:
The Government of India enacted the Energy Conservation Act in the year 2001. The Energy Conservation Act is an act to provide for the efficient use of energy and its conservation.
42. Which of the following country is the largest Greenhouse Gas emitter?
[A] U.S.A
[B] China
[C] India
[D] Russia
Show Answer
Correct Answer: B [China]
Notes:
With a share of almost 30 percent of the world’s total CO2 emissions, China tops the ranking of the largest green house gas emitter and the USA is the second largest Greenhouse Gas emitter.
43. Which of the following processes is functional in removing carbon dioxide from the atmosphere?
[A] Volcanism
[B] Deforestation
[C] Burning of Fossil Fuels
[D] Photosynthesis
Show Answer
Correct Answer: D [Photosynthesis]
Notes:
Photosynthesis is the process by virtue of which the green plants and certain other organisms transform light energy into chemical energy. During the process of photosynthesis, plants take carbon dioxide from the atmosphere hence reducing the concentration of carbon dioxide in the atmosphere.
44. Which of the following statements are correct regarding Climate forcings?
1) Negative forcings warm the earth
2) Positive forcings cool the earth.
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: D [Neither 1 & 2]
Notes:
Climate “forcings” are the factors that either increase the effects on the climate system or decrease the effects on the climate system. Positive forcings warm the earth while negative forcings actually cool the earth.
45. Which of the following statements are correct regarding Green Buildings?
1. It is little expensive to design and construct a green building.
2. The cost of operating a Green Building is less and has tremendous environmental benefits.
3. Green Buildings use minimum energy to power itself.
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:
It is little expensive to design and construct a green building. The cost of operating a Green Building is less and has tremendous environmental benefits. Green Buildings use minimum energy to power itself.
46. Which of the following statements are correct regarding BioWeb?
1. It is a network of web-enabled biological devices which extends an internet of things to the Internet of Living Things of natural sensory devices.
2. These devices provide insights to real-time ecological data and feedback to changes in the environment.
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:
BioWeb is a network of web-enabled biological devices which expands an internet of things to the Internet of Living Things of natural sensory devices. These devices provide insights to real-time ecological data and feedback to changes in the environment.
47. Which are the most common vegetation of Mangroves?
[A] Kewra bushes
[B] Litchi plants
[C] Tulsi plants
[D] Varenima bushes
Show Answer
Correct Answer: A [Kewra bushes]
Notes:
Kewra or keya bushes are also the most common vegetation
of these forests, which grow in clumps
or group. Kewra is widely utilized as a plantation species to create a shelter belt along the coastal areas and offshore islands of Bangladesh.
48. Microbial degradation of nitrates into atmospheric nitrogen is known as _____:
[A] Ammonification
[B] Denitrification
[C] Nitrification
[D] Putrefaction
Show Answer
Correct Answer: B [Denitrification]
Notes:
Denitrification is the biological conversion of nitrate to nitrogen gas, nitric oxide or nitrous oxide. It involves nitrate reduction by bacterial species such as Pseudomonas and Clostridium, usually in anaerobic conditions that ultimately produces molecular nitrogen (N2). These bacteria use nitrate as an electron acceptor instead of oxygen during respiration.
49. First national park of India that was established in 1936 was named as ______:
[A] Kanha National Park
[B] Hailey National Park
[C] Bharatpur National Park
[D] Rajaji National Park
Show Answer
Correct Answer: B [Hailey National Park]
Notes:
India’s first national park was established in 1936 as Hailey National Park to protect the endangered Bengal tiger. It is now known as Jim Corbett National Park. It is located in Nainital district of Uttarakhand and was named after Jim Corbett, a British- Indian hunter and tracker-turned-conservationist, who played a key role in its establishment.
50. In which country is the Pantanal wetland located?
[A] Brazil
[B] Argentina
[C] Peru
[D] Bolivia
Show Answer
Correct Answer: A [Brazil]
Notes:
The Pantanal Conservation Area, recognized as a UNESCO World Heritage Site, accounts for 1.3% of the vast Pantanal wetland in Brazil and spans across 187,818 hectares. It provides shelter for more than 650 bird species, 325 fish species, and 80 mammal species, including giant armadillo and jaguar. The area’s unique ecosystem extends from floodplains to the Amolar Mountains, supporting diverse habitats and maintaining regional fish stocks. Moreover, it is an all-important breeding ground for wetland birds and refuge for globally threatened species like the hyacinth macaw. Additionally, it is a Ramsar Wetland and a UNESCO Man & Biosphere Reserve.
