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 statements are correct about Lead?
1. Petrol, diesel, lead batteries, paints and hair dye products contain Lead.
2. Lead particularly affects children.
3. It can cause damage to the nervous system and create digestive problems and, in some cases, cause cancer.
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:
Petrol, diesel, lead batteries, paints and hair dye products contain Lead. Lead particularly affects children. It can cause damage to the nervous system and create digestive problems and, in some cases, cause cancer.
42. Which of the following statements are correct regarding Fly Ash?
1. Combustion of solid material leads to the production of Ash.
2. Fly ash is a very fine powder which tends to travel far in the air.
3. The ash which does not rise in the air is termed as bottom ash.
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:
Combustion of solid material leads to the production of Ash. Fly ash is a very fine powder which tends to travel far in the air. The ash which does not rise in the air is termed as bottom ash.
43. Which article of the Indian Constitution assures the citizens of India the right to a healthy environment?
[A] Article 20
[B] Article 21
[C] Article 22
[D] Article 23
Show Answer
Correct Answer: B [Article 21]
Notes:
Article 21 of the Constitution of India which provides for protection of life and personal liberty assures the citizens of India the right to a healthy environment. The right is available to both citizens and aliens.
44. Which of the following gases results in the Global warming?
[A] Oxygen
[B] Carbon dioxide
[C] Nitrogen
[D] Hydrogen
Show Answer
Correct Answer: B [Carbon dioxide]
Notes:
Global warming can be defined as the century-scale rise in the average temperature of the Earth’s atmosphere and its related effects. Among all the given gases only Carbon dioxide contributes to the Global warming.
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. Which of the following statements are correct regarding Biocapacity?
1. It refers to capacity of an area to provide resources and absorb wastes at the same time.
2. When an area’s ecological footprint exceeds its biocapacity it results into unsustainability.
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:
Biocapacity refers to capacity of an area to provide resources and absorb wastes at the same time. When an area’s ecological footprint exceeds its biocapacity it results into unsustainability.
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. Absence of fish along a river indicates _____:
[A] Zone of active decomposition
[B] Zone of degradation
[C] Zone of recovery
[D] All zones of pollution
Show Answer
Correct Answer: B [Zone of degradation]
Notes:
Absence of fish along a river indicates zone of degradation. This zone is found for a certain length just below the point where sewage is discharged into the river-stream. This zone is characterised by water becoming dark and turbine with formation of sludge deposits at the bottom. D.O is reduced to about 40% of the saturated value.
49. 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.
50. Shivpuri National Park of Madhya Pradesh is important for _______:
[A] Birds
[B] Wild Buffalo
[C] Tiger and Elephant
[D] Leopard and Chital
Show Answer
Correct Answer: D [Leopard and Chital]
Notes:
The predominant wild animal species that inhabits the Park is the deer, of which the most easily sighted are the graceful little chinkara or Indian gazelle, and the chital. Other species that have their habitat in the park are nilgai, sambar, chausingha or four-horned antelope, blackbuck, sloth bear, leopard and the common langur.
