Environment & Biodiversity MCQs
Environment, Ecology & Biodiversity Multiple choice questions for GK paper in SSC, NDA, CDS, UPSC, UPPSC and State PSC Examinations.
41. Panna Biosphere Reserve is located in which of the following states?
[A] Jharkhand
[B] Madhya Pradesh
[C] Chattisgarh
[D] Uttar pradesh
Show Answer
Correct Answer: B [Madhya Pradesh]
Notes:
Panna Biosphere Reserve is situated in the Vindhyan mountain range in the northern part of Madhya Pradesh. It was designated as Biosphere Reserve on 25 August 2011. It is the 3rd Biosphere Reserve of Madhya Pradesh.
42. Which of the following pollutants are biodegradable in nature?
1. DDT
2. Salts of heavy metals
3. Radioactive substances
Select the correct option from the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 3
[D] None of the above
Show Answer
Correct Answer: D [None of the above]
Notes:
Biodegradable Pollutants are usually waste products, which are easily degraded by microbial action. Plastics, glass, DDT, salts of heavy metals and radioactive substances are all non-biodegradable in nature.
43. Which of the following gases slows our reflexes and make us confused and sleepy?
[A] Carbon dioxide
[B] Carbon monoxide
[C] Chloroflorocarbons
[D] Ozone
Show Answer
Correct Answer: A [Carbon dioxide]
Notes:
Carbon monoxide slows our reflexes and make us confused and sleepy. It lowers down the amount of oxygen that enters our blood. It is a colourless and odourless gas produced by the incomplete burning of carbon-based fuels.
44. Which of the following is not a Greenhouse gas?
[A] Nitrous oxide
[B] Carbon monoxide
[C] Carbon di-oxide
[D] Water vapour
Show Answer
Correct Answer: B [Carbon monoxide]
Notes:
Greenhouse gases are those gaseous constituents of the atmosphere, both anthropogenic and natural, that absorb and re-emit infrared radiation. Nitrous oxide, Carbon dioxide, and Water vapour are Greenhouse gases but Carbon Monoxide is not a Greenhouse gas.
45. Which of the following statements are correct regarding Coastal Regulation Zone Notification, 2018?
1. It is based on the recommendations of Shailesh Nayak committee.
2. Defense and strategic projects are exempted from regulations.
3. For CRZ-III (Rural) areas, two separate categories have now been stipulated, i.e., CRZ-IIIA & CRZ-IIIB.
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:
Coastal Regulation Zone Notification, 2018 is based on the recommendations of Shailesh Nayak committee. Defense and strategic projects are exempted from regulations. For CRZ-III (Rural) areas, two separate categories have now been stipulated, i.e., CRZ-IIIA & CRZ-IIIB.
46. Which of the following refers to reducing the impact on climate change by reducing greenhouse gas production especially CO2 , without lowering their standard of living?
[A] Carbon Footprint
[B] Carbon diet
[C] Greenhouse debt
[D] Biocapacity
Show Answer
Correct Answer: B [Carbon diet]
Notes:
Carbon Diet refers to reducing the impact on climate change by reducing greenhouse gas production especially CO2 , without lowering their standard of living. A low-carbon diet involves making lifestyle choices related to food consumption which reduce resulting greenhouse gas emissions (GHGe).
47. What is the most abundant organic compound in the terrestrial environment?
[A] Sucrose
[B] Lactose
[C] Cellulose
[D] Fructose
Show Answer
Correct Answer: C [Cellulose]
Notes:
The most abundant organic compound in the terrestrial environment is cellulose. A type of carbohydrate, cellulose contains chains of glucose rings. Providing strength and rigidity, cellulose forms the cell walls of plants. Cellulose is the primary constituent of wood, making this organic compound the most abundant one on the surface of the Earth.
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. Which of the following factors is/are not affected by speed and direction of wind?
[A] Location on the earth
[B] Revolution of earth
[C] Local conditions
[D] Height from ground
Show Answer
Correct Answer: B [Revolution of earth]
Notes:Blowing or moving air is called wind. The speed of wind may vary from 5-10 km/h (gentle breeze) to 700-800 km/h (tornado). The speed and direction of wind is affected by the following factors :
- Location on the earth
- Rotation of the earth
- Local conditions
- Height from the ground
50. Ningaloo Coast is a world heritage site located in which country?
[A] Australia
[B] New Zealand
[C] United States
[D] South Africa
Show Answer
Correct Answer: A [Australia]
Notes:
The Ningaloo Coast is a World Heritage Site located in Western Australia renowned for its diverse marine ecosystems and exceptional biodiversity. This 705,015 hectares site features Australia’s largest fringing coral reef, supporting over 500 fish, 250 coral, and 600 mollusc species. There have been some recent unusual sightings, including the reappearance of the short-nosed sea snake in 2015. The crystal-clear water, due to the area’s arid climate, is perfect for snorkelling and underwater diving. The coast also includes nesting sites for three species of sea turtles. This significant site has been managed through a marine park since 1987.
