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 biomes are included in the First phase of the LTEO Programme?
1) Eastern Himalayas
2) Western Himalayas
3) Eastern Ghats
4) Western Ghats
Select the correct option from the codes given below:
[A] Only 1 & 4
[B] Only 1, 2, & 4
[C] Only 1, 2 & 3
[D] 1, 2, 3 & 4
Show Answer
Correct Answer: B [Only 1, 2, & 4]
Notes:
The following Eight Biomes were considered in the first phase of the LTEO Programme namely; Western Himalaya, Eastern Himalaya, North-Western Arid Zone, Central Indian Forests, Western Ghats, Andaman & Nicobar Islands, Jammu & Kashmir and Sundarbans.
42. 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.
43. Which of the following statements are correct with respect to Aestivation?
1. It is a state of animal dormancy.
2. It takes place during times of heat and dryness, the hot dry season.
3. Metabolic rate is lowered in response to high temperatures and arid conditions.
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:
Aestivation refers to a state of animal dormancy. It takes place during times of heat and dryness, the hot dry season. Metabolic rate is lowered in response to high temperatures and arid conditions.
44. Which of the following statements are correct regarding Wildlife corridor or Green corridor?
1. It is an area of habitat which connects wildlife populations separated by human activities.
2. Wildlife corridors may be both natural or created.
3. These corridors help animals that move between isolated patches on a daily basis and also those that migrate between habitats seasonally.
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:
Wildlife corridor or Green corridor is an area of habitat which connects wildlife populations separated by human activities. Wildlife corridors may be both natural or created. These corridors help animals that move between isolated patches on a daily basis and also those that migrate between habitats seasonally.
45. Which of the following three ‘R’s are regarded as environment friendly?
[A] Reduce, Reuse, Recycle
[B] Read, Register, Recall
[C] Reduce, Rebuild, Restrict
[D] Random, Reduce, Recall
Show Answer
Correct Answer: A [Reduce, Reuse, Recycle]
Notes:
The three R’s of eco-friendly living are: Reduce, Reuse and Recycle. They all help to cut down on the amount of waste, we throw away. They conserve natural resources, landfill space and energy.
46. 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.
47. With respect to humans, why is carbon monoxide a pollutant?
[A] It reacts with haemoglobin
[B] It reacts with sulphur dioxide
[C] It reacts with nitrogen dioxide
[D] It makes nervous system inactive
Show Answer
Correct Answer: A [It reacts with haemoglobin]
Notes:
Carbon monoxide inhibits the blood’s ability to carry oxygen to body tissues including vital organs such as the heart and brain. When CO is inhaled, it combines with the oxygen carrying haemoglobin of the blood to form carboxyhemoglobin (COHb). Once combined with the haemoglobin, that haemoglobin is no longer available for transporting oxygen.
48. Consider the following gases:
- Carbon dioxide
- Nitrogen
- Nitrous oxide
- Water vapour
Which of the above gases are considered as greenhouse gases?
[A] 1, 3 & 4
[B] 1 & 4
[C] 1 & 3
[D] 1, 2 & 4
Show Answer
Correct Answer: A [1, 3 & 4 ]
Notes:A greenhouse gas is a gas that absorbs and emits radiant energy within the thermal infrared range, contributing to the greenhouse effect. The essential greenhouse gases in the Earth’s atmosphere include:
- Water vapor
- Carbon dioxide
- Methane
- Nitrous oxide
- Ozone
Here, Nitrogen is not considered a greenhouse gas.
49. Bandhavgarh National Park is in which state?
[A] Rajasthan
[B] Chhattisgarh
[C] Uttar Pradesh
[D] Madhya Pradesh
Show Answer
Correct Answer: D [Madhya Pradesh]
Notes:
Bandhavgarh National Park is located in the Umaria district of Madhya Pradesh. Bandhavgarh was declared a national park in 1968. This park is known for high density of Tigers. The park derives its name from the most prominent hillock of the area, which was said to be given by Hindu Lord Rama to his brother Lakshmana to keep a watch on Lanka (Ceylon).
50. In an ecosystem, the movement of energy towards the higher trophic levels is:
[A] Multi-directional
[B] Unidirectional
[C] Undefined
[D] None of the flow
Show Answer
Correct Answer: B [Unidirectional]
Notes:
In any ecosystem, there is conversion of inorganic into organic material with the help of the radiant energy of the sun by the autotrophs; consumption of the autotrophs by heterotrophs; decomposition and mineralisation of the dead matter to release them back for reuse by the autotrophs, these events are repeated over and over again. There is unidirectional movement of energy towards the higher trophic levels and its dissipation and loss as heat to the environment.
