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 gas acts as the baseline for other Global warming potential values?
[A] Methane
[B] Carbon dioxide
[C] Sulfur hexafluoride
[D] Water vapour
Show Answer
Correct Answer: B [Carbon dioxide]
Notes:
The concept of Global Warming Potential (GWP) was developed to allow comparisons of the global warming impacts of different gases. Carbon dioxide (CO2) has a GWP of 1 and it serves as a baseline for other GWP values.
42. Arrange the following events associated with Sea level rise in correct chronological sequence:
1) Combustion of Fossil Fuels
2) Global Warming
3) Sea level rise
4) Melting of Glaciers
5) Increase in Green house Gasses
Select the correct option from the codes given below:
[A] 1, 2, 3, 4, 5
[B] 1, 2, 5, 3, 4
[C] 1, 5, 2, 4, 3
[D] 5, 1, 2, 4, 3
Show Answer
Correct Answer: C [1, 5, 2, 4, 3]
Notes:
The correct sequence of the events related to the sea-level rise will be:
1) Combustion of Fossil Fuels
2) Increase in Greenhouse Gasses
3) Global Warming
4) Melting of Glaciers
5) Sea level rise
43. Which of the following statements are correct regarding Biofuels?
1) Biofuels are non-renewable sources of energy
2) Biofuels may be solid, liquid or gaseous in nature
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:
A biofuel is a fuel that is produced through contemporary processes from biomass (living or once-living material). They are a renewable source of energy and can be solid, liquid, or gaseous in nature.
44. Which of the following are the branches of sustainability?
1. the environment
2. the needs of present and future generations
3. the economy
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:
The branches of sustainability include the environment, the needs of present and future generations and the economy. Sustainable development is the type of development that meets the needs of the present generations without compromising the ability of future generations to meet their own needs.
45. Which of the following is a lake with low primary productivity as a result of low nutrient content?
[A] Eutrophic lake
[B] Oligotrophic Lake
[C] Mesotrophic lakes
[D] None of the above
Show Answer
Correct Answer: B [Oligotrophic Lake]
Notes:
The lakes which have low primary productivity as a result of low nutrient content are known as Oligotrophic Lake. These lakes have very low algal production therefore they often have very clear waters, with high drinking-water quality.
46. Which of the followings is an example of Montane Wet Temperate Forests?
[A] Maple
[B] Hogla
[C] Cocnut
[D] All of the above
Show Answer
Correct Answer: A [Maple]
Notes:
Montane Wet Temperate Forests is found in upper
reaches of North Bengal hills with an
altitude between 1650 m-3000 m. The main sites of these forests are Selimbong, Kankibong, Little Rangit,
Lopchu, Mahaldiram, Paglajhora, etc
in the districts of Darjeeling and
Kalimpong. The species commonly found in these forests are oak, maple,
pine, fir, deodar and spruce.
47. Solar energy is converted into chemical energy during ____:
[A] Photosynthesis
[B] Combustion
[C] Transition
[D] Fusion
Show Answer
Correct Answer: A [Photosynthesis]
Notes:
Photosynthesis in plants converts radiant energy from the sun into chemical energy in the form of glucose (sugar) using electrons and protons from water. Plants take in water, carbon dioxide, and sunlight and turn them into glucose and oxygen. Water (6H2O) + Carbon Dioxide (6CO2) + Sunlight (Radiant Energy) = Glucose (C6H12O6) + Oxygen (6O2).
48. Mudumalai Sanctuary is famous for ______:
[A] Tigers
[B] Birds
[C] Bisons
[D] Elephants
Show Answer
Correct Answer: A [Tigers]
Notes:
The Mudumalai National Park and Wildlife Sanctuary, now also declared a Tiger Reserve, lies on the northwestern side of the Nilgiri Hills, in Nilgiri District, about 150 km north-west of Coimbatore city in the westernmost part of Tamil Nadu, on the interstate boundaries with Karnataka and Kerala states in South India. The sanctuary is a haven for Bengal Tigers and Indian Leopards and other threatened species.
49. Which of the following is a Floating National Park of India?
[A] Similipal
[B] Namdapha
[C] Eravikulam
[D] Keibul Lamjao
Show Answer
Correct Answer: D [Keibul Lamjao]
Notes:
The Keibul Lamjao National Park is a national park in the Bishnupur district of the state of Manipur in India. It is 40 km2 (15.4 sq mi) in area, the only floating park in the world, located in North East India, and an integral part of Loktak Lake.
50. What fraction of world’s fish species are provided shelter by Great Barrier Reef?
[A] 10%
[B] 25%
[C] 50%
[D] 75%
Show Answer
Correct Answer: A [10%]
Notes:
The Great Barrier Reef, a UNESCO World Heritage Site, is the world’s largest coral reef system, spanning 2,300 kilometers and covering 344,400 square kilometers. It is home to 10% of the world’s fish species, 400 types of coral, and six of the seven species of marine turtles. The reef is composed of over 2,900 individual reefs and 900 islands, with the widest sections reaching up to 65 kilometers. It is visible from space and supports a diverse array of marine life, including whales, dolphins, and sharks. The reef has been listed as one of the Seven Natural Wonders of the World since 1997. Despite its natural beauty, the reef faces threats from climate change, coral bleaching, and pollution, with UNESCO recommending it for the In Danger list due to these impacts.
