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 an important heat-trapping gas?
[A] NItrogen
[B] Hydrogen
[C] Carbon Monoxide
[D] Carbon Dioxide
Show Answer
Correct Answer: D [Carbon Dioxide]
Notes:
Carbon dioxide is an important heat trapping gas that traps the outgoing heat radiation which is reflected back from the Earth’s atmosphere and surface. It is released due to many natural as well as man-made factors mainly being the consumption of fossil fuels.
42. Which of the following statements are correct regarding REDD?
1) REDD means Reducing Emissions from Deforestation and Forest Degradation
2) the secondary objective is biodiversity conservation and poverty alleviation.
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:
REDD means Reducing Emissions from Deforestation and Forest Degradation. The original objective of REDD is to reduce greenhouse gases but it can also deliver “co-benefits” such as biodiversity conservation and poverty alleviation.
43. Which of the following are the objectives of National Innovations on Climate Resilient Agriculture?
1) Strategic research
2) Technology demonstrations
3) Capacity building
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:
National Innovations on Climate Resilient Agriculture was launched in 2011 by the Indian Council of Agricultural Research. The prime objectives of NICRA are:
1) Strategic research
2) Technology demonstrations
3) Capacity building
44. Which of the following are micro-organisms that can live within the pore interstices of sedimentary and even igneous rocks to depths of several kilometers?
[A] Lithotroph
[B] Hemotrophs
[C] Lithophiles
[D] Phototrophs
Show Answer
Correct Answer: C [Lithophiles]
Notes:
Micro-organisms that can live within the pore interstices of sedimentary and even igneous rocks to depths of several kilometers are referred to as Lithophiles. Some of these mico-organisms are known to live on surface rocks, and make use of photosynthesis for energy.
45. Which of the following statements are correct regrading Gene banks?
1. Gene banks are established to protect genetic material, be it plant or animal.
2. In plants, genetic material can be saved by freezing cuts from the plant, or stocking the seeds.
3. In animals, genetic material can be saved by freezing of sperm and eggs in zoological freezers until
further need.
Select the correct option from the code 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:
Gene banks are established to protect genetic material, be it plant or animal. In plants, genetic material can be saved by freezing cuts from the plant, or stocking the seeds. In animals, genetic material can be saved by freezing of sperm and eggs in zoological freezers until further need.
46. 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.
47. Basel Protocol is related to which of the following?
[A] Ozone layer
[B] Sea water pollution
[C] Burning of forests
[D] Trans-boundary hazardous dumping
Show Answer
Correct Answer: D [Trans-boundary hazardous dumping]
Notes:
The Basel Protocol on Liability and Compensation was adopted at the Fifth Conference of Parties (COP 5) on10 December 1999. The objective of the Protocol is to provide for a comprehensive regime for liability as well as adequate and prompt compensation for damage resulting from the transboundary movement of hazardous wastes and other wastes, including incidents occurring because of illegal traffic in those wastes.
48. Which is used as an Air pollution indicator?
[A] Algae
[B] Fungi
[C] Bacteria
[D] Lichens
Show Answer
Correct Answer: D [Lichens]
Notes:
Lichens are used as air pollution indicators, especially of the concentration of Sulphur dioxide in the atmosphere. If air is very badly polluted with sulphur dioxide there may be no lichens present, just green algae may be found. If the air is clean, shrubby, hairy and leafy lichens become abundant.
49. Which among the following helps in monitoring air pollution?
[A] Lichen
[B] Bacteria
[C] Algae
[D] Fungi
Show Answer
Correct Answer: A [Lichen]
Notes:
Lichens are actually two types of organisms living together, a fungus and an alga. The fungus makes the body that protects the alga and the alga provides the food for the fungus. Lichens can be used as air pollution indicators, especially of the concentration of Sulphur dioxide in the atmosphere.
50. The State which produces largest number of orchids in India is ______:
[A] Meghalaya
[B] Assam
[C] Sikkim
[D] Arunachal Pradesh
Show Answer
Correct Answer: C [Sikkim]
Notes:
Sikkim is the largest producer of orchids in India. The state is home to an amazing 450 species of exotic orchids alone. Annually, around 20 million stalks of orchids are produced in Sikkim. Sikkim, owing to its climatic conditions, has developed as a natural hub of orchids.
