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 is/are correct regarding Plasticulture?
1) It is the practice of using plastic materials in Road construction.
2) Polyethylene (PE) is mostly used by the majority of people.
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:
Plasticulture refers to the practice of using plastic material in agricultural applications. They are also referred to as ag Plastics. Polyethylene (PE) is mostly used by the majority of people due to its easy availability.
42. Which of the following statements are correct regarding the Least Developed Countries Fund?
1) It was established in 2001.
2) It is operated by the Global Environment Facility
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:
The Least Developed Countries Fund (LDCF) was established in 2001 and is operated by the Global Environment Facility (GEF). It was established to support these countries work programme under the UN Framework Convention on Climate Change (UNFCCC).
43. Karnataka lies in which of the following biogeographic realms?
[A] Palearctic
[B] Indomalayan
[C] Australasia
[D] Neotropic
Show Answer
Correct Answer: B [Indomalayan]
Notes:
Karnataka lies in Indomalayan biogeographic realm.
44. Sub-alpine Forests are found in–
[A] Darjeeling
[B] Kalimpong
[C] Purulia
[D] Coochbehar
Show Answer
Correct Answer: A [Darjeeling ]
Notes:
Sub-alpine Forests is found in the very high reaches of North Bengal hills with an altitude between 3000m-3700m in the Northern part of Darjeeling
district. The main sites of these forests
are Sandakphu, Sabarkum, Phalut, etc.
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 one of the following is not a major component of biotic environment?
[A] Plant
[B] Water
[C] Animals
[D] Decomposers
Show Answer
Correct Answer: B [Water]
Notes:
Water is one of the abiotic factors that are nonliving chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems. They affect living organisms in terms of growth, maintenance, and reproduction. A biotic factor is any living component that affects the population of another organism, or the environment.
47. Which of the following primarily causes Mercury Pollution?
[A] Automobile Battery
[B] Diesel Engine
[C] Polymer
[D] CFL Lamp
Show Answer
Correct Answer: D [CFL Lamp]
Notes:
Old compact fluorescent lamp (CFL) bulbs lead to mercury pollution. According to the U.S. Environmental Protection Agency, common CFL bulbs contain 3-5 milligrams (mg) of mercury. CFLs, like all fluorescent lamps, contain mercury as a vapor inside the glass. Mercury (Hg) is a heavy metal that exists in several forms. Human contact with mercury, in any form, can produce toxic effects if the dose is high enough.
48. Which one of the following is an indicator of air pollution?
[A] Cycas
[B] Algae
[C] Bryophytes
[D] Lichens
Show Answer
Correct Answer: D [Lichens]
Notes:
Lichens are found in both nature and in human-made environments, including rocks, trees, barren earth, metal and concrete. They are sensitive to air pollution because they receive all nutrients from the atmosphere, which makes them valuable as indicator species. The presence of sulphur dioxide force them to perish.
49. What is green house effect?
[A] Turning of house green because of algae cover
[B] Warming of earth because of trapping of radiations by the earths atmosphere
[C] Turning of house green because of green component of white light
[D] None of the above
Show Answer
Correct Answer: B [Warming of earth because of trapping of radiations by the earths atmosphere]
Notes:
The greenhouse effect is the process by which radiation from a planet’s atmosphere warms the planet’s surface to a temperature above what it would be without its atmosphere. It caused by the presence of water vapour, carbon dioxide, methane, and certain other gases in the air.
50. ‘Mylo’ is an un-leather fabric and a very sustainable product. It is made from which of the following organic material?
[A] Mushroom
[B] Bamboo
[C] Eucalyptus
[D] Coconut
Show Answer
Correct Answer: A [Mushroom]
Notes:
Mylo is a leather-like material made from mycelium, the underground root structure of mushrooms. Mylo is a sustainable alternative to leather because it can be grown without polluting substances. It is also more sustainable than synthetic leathers, which are usually made from petroleum-derived inputs.
Mylo is grown in a controlled indoor environment. The growing process is designed to be low impact and takes less than two weeks. It emits fewer greenhouse gases and uses less water and resources than animal-based leather.
Mylo is 80% bio-based and is completely biodegradable and compostable. However, when extra durability is needed, the mushroom leather is reinforced with polyurethane, which decreases its biodegradability.
