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UPSC 2024 Environment PYQ Solved

14 Environment questions from UPSC 2024 Prelims GS Paper 1 — solved with answers

14
Questions
64%
Trap Rate
Distractor Pairing
Top Trap
Q26hardDistractor Pairing
One of the following regions has the world's largest tropical peatland, which holds about three years worth of global carbon emissions from fossil fuels; and the possible destruction of which can exert detrimental effect on the global climate. Which one of the following denotes that region ?
(a) Amazon Basin
(b) Congo Basin
(c) Kikori Basin
(d) Rio de la Plata Basin
Answer: (b)
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Q27moderate
With reference to perfluoroalkyl and polyfluoroalkyl substances (PFAS) that are used in making many consumer products, consider the following statements : 1. PFAS are found to be widespread in drinking water, food and food packaging materials. 2. PFAS are not easily degraded in the environment. 3. Persistent exposure to PFAS can lead to bioaccumulation in animal bodies. Which of the statements given above are correct ?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Answer: (d)
Q28easyAbsolute Qualifier
Consider the following : 1. Carabid beetles 2. Centipedes 3. Flies 4. Termites 5. Wasps Parasitoid species are found in how many of the above kind of organisms ?
(a) Only two
(b) Only three
(c) Only four
(d) All five
Answer: (b)
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Q29easy
Consider the following plants : 1. Groundnut 2. Horse-gram 3. Soybean How many of the above belong to the pea family ?
(a) Only one
(b) Only two
(c) All three
(d) None
Answer: (c)
Q30hardCommon Misconception
Consider the following statements : Statement-I : The Indian Flying Fox is placed under the "vermin" category in the Wild Life (Protection) Act, 1972. Statement-II : The Indian Flying Fox feeds on the blood of other animals. Which one of the following is correct in respect of the above statements ?
(a) Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
(b) Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
(c) Statement-I is correct, but Statement-II is incorrect
(d) Statement-I is incorrect, but Statement-II is correct
Answer: (x)
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Q41easy
The organisms "Cicada, Froghopper and Pond skater" are :
(a) Birds
(b) Fish
(c) Insects
(d) Reptiles
Answer: (c)
Q42easy
Consider the following statements : Statement-I : Many chewing gums found in the market are considered a source of environmental pollution. Statement-II : Many chewing gums contain plastic as gum base. Which one of the following is correct in respect of the above statements ?
(a) Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
(b) Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
(c) Statement-I is correct, but Statement-II is incorrect
(d) Statement-I is incorrect, but Statement-II is correct
Answer: (a)
Q43moderateDistractor Pairing
Consider the following pairs : Country | Animal found in its natural habitat 1. Brazil | Indri 2. Indonesia | Elk 3. Madagascar | Bonobo How many of the pairs given above are correctly matched ?
(a) Only one
(b) Only two
(c) All three
(d) None
Answer: (d)
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Q45moderatePartial Truth
Consider the following statements : 1. Lions do not have a particular breeding season. 2. Unlike most other big cats, cheetahs do not roar. 3. Unlike male lions, male leopards do not proclaim their territory by scent marking. Which of the statements given above are correct ?
(a) 1 and 2 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Answer: (a)
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Q46hardDistractor Pairing
Which one of the following is the correct description of "100 Million Farmers" ?
(a) It is a platform for accelerating the transition towards food and water systems that are net-zero (carbon), nature-positive and that aims to increase farmer resilience.
(b) It is an international alliance and a network of individuals and farming organisations interested in supporting and strengthening the development of the organic animal husbandry.
(c) It is a digital platform fully integrated with service providers and built on blockchain that lets buyers, sellers and third parties trade fertilizers quickly and securely.
(d) It is a platform with the mission of encouraging the farmers to form Farmer Product Organisations or Agribusiness Consortiums, thus facilitating the access to global open markets to sell their products.
Answer: (a)
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Q48moderateDistractor Pairing
Which one of the following shows a unique relationship with an insect that has coevolved with it and that is the only insect that can pollinate this tree ?
(a) Fig
(b) Mahua
(c) Sandalwood
(d) Silk cotton
Answer: (a)
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Q49moderateCommon Misconception
Consider the following : 1. Butterflies 2. Fish 3. Frogs How many of the above have poisonous species among them ?
(a) Only one
(b) Only two
(c) All three
(d) None
Answer: (c)
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Q50easyCommon Misconception
Consider the following : 1. Cashew 2. Papaya 3. Red sanders How many of the above trees are actually native to India ?
(a) Only one
(b) Only two
(c) All three
(d) None
Answer: (a)
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Q70easy
According to the Environmental Protection Agency (EPA), which one of the following is the largest source of sulphur dioxide emissions ?
(a) Locomotives using fossil fuels
(b) Ships using fossil fuels
(c) Extraction of metals from ores
(d) Power plants using fossil fuels
Answer: (d)