UPSC Prelims 2021: Questions from Environment

Total Number of Questions = **

Questions covered by Synopsis IAS Courses = **

Here are the UPSC Prelims 2021 questions and solutions for these subjects.



 

Q7. Consider the following statements:

Statement 1: The United Nation Capital Development Fund (UNCDF) and the Arbor Day Foundation have recently recognized Hyderabad as 2020 Tree City of the World.

Statement 2: Hyderabad was selected for the recognition for a year following its commitment for a year following its commitment to grow and maintain the urban forests.

Which one of the following is correct in respect of the above statements?

(a) Both Statement 1 and Statement 2 are correct and Statement 2 is the correct explanation for Statement 1

(b) Both Statement 1 and Statement 2 are correct but Statement 2 is not the correct explanation for Statement 1.

(c) Statement 1 is correct but Statement 2 is not correct.

(d) Statement 1 is not correct but Statement 2 is correct.

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Q11. Consider the following statements:

1. Right to the City’ is an agreed human right and the UN-Habitat monitors the commitments made by each country in this regard.

2. ‘Right to the City’ gives every occupant of the city the right to reclaim public spaces and public participation in the city.

3. ‘Right to the City’ means that the State cannot deny any public service or facility to the unauthorized colonies in the city.

Which of the statements given above is/are correct?

(a) 1 only

(b) 3 only

(c) 1 and 2

(d) 2 and 3

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Q14. At the national level, which ministry is the nodal agency to ensure effective implementation of the Scheduled Tribes and Other Traditional Forest Dwellers (Recognition of Forest Rights) Act, 2006?

(a) Ministry of Environment, Forest and Climate Change

(b) Ministry of Panchayati Raj

(c) Ministry of Rural Development

(d) Ministry of Tribal Affairs

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Q31.The vegetation of savannah consists of grassland with scattered small trees, but extensive areas have no trees. The forest development in such areas is generally kept in check by one or more a combination of some conditions. Which of the following are such conditions?

  1. Burrowing animals and termites
  2. Fire
  3. Grazing herbivores
  4. Seasonal rainfall
  5. Soil properties

Select the correct answer using the code given below.

(a) 1 and 2

(b) 4 and 5

(c) 2, 3 and 4

(d) 1, 3 and 5

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Q33. Consider the following statements:

  1. Moringa (drumstick tree) is a leguminous evergreen tree.
  2. Tamarind tree is endemic to South Asia.
  3. In India, most of the tamarind is collected as minor forest produce.
  4. India exports tamarind and seeds of Moringa.
  5. Seeds of moringa and tamarind can be used in the production of biofuels.

Which of the statement given above are correct?

(a) 1, 2, 4 and 5

(b) 3, 4 and 5

(c) 1, 3 and 4

(d) 1, 2, 3 and 5

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Q50. “Leaf Litter dicomposes faster than in any other biome and as a result the soil surface is often almost bare. Apart from trees, the vegetation is largely composed of plants forms that reach up into the canopy vicariously, by climbing the trees or growing as epiphytes, rooted of the upper branches of trees” this is the most likely description of

(a) Coniferous forest

(b) Dry deciduous forest

(c) Mangrove forest

(d) Tropical rain forest


Q71. Which one of the following is used in preparing a natural mosquito repellent?

(a) Congress grass

(b) Elephant grass

(c) Lemongrass

(d) Nut grass


Q72. Consider the following kinds of organisms

  1. Copepods
  2. Cyariobacteria
  3. Diatoms
  4. Foraminifera

Which of the above are primary producers in the food chains of oceans?

(a) 1, 2 and 4

(b) 1, 3 and 5

(a) 1 and 2

(d) 2 and 5


Q73. Consider the following animals:

  1. Hedgehog
  2. Marmot
  3. Pangolin

To reduce the chance of being captured of the above by predators, which roll up and protects/ organisms rolls up/ protect its/their vulnerable parts?

(a) 1 and 2

(b) 2 only

(c) 3 only

(d) 1 and 3


Q74. With reference to the ‘New York declaration on forests’ which of the following statements are correct?

  1. It was first endorsed at the United Nations Climate Summit in 2014.
  2. It endorses a global timeline to end the loss of forests.
  3. It is a legally binding international declaration.
  4. It is endorsed by governments, big companies and indigenous communities.
  5. India was one of the signatories at its inception.

Select the correct answer using the code given below.

(a) 1, 2 and 4

(b) 1,3 and 5

(c) 3 and 4

(d) 2 and 5


Q75. Magnetite particles, suspected to cause neurodegenerative problems, are generated as environmental. pollutants from which of the following?

  1. Brakes of motor vehicles
  2. Engines of motor vehicles
  3. Microwave stoves within homes
  4. Power plants
  5. Telephone lines

Select the correct answer code given below.

(a) 1, 2, 3 and 5 only

(b) 1, 2 and 4 only

(c) 3, 4 and 5 only

(d) 1, 2, 3.4 and 5


Q76. Which one of the following is a filter feeder?

(a) Catfish

(b) Octopus

(c) Oyster

(d) Pelican


Q77. In case of which one of the following biogeochemical cycles, the weathering of rocks is the main source of release of nutrient to enter the cycle?

(a) Carbon cycle

(b) Nitrogen cycle

(c) phosphorus cycle

(d) Sulphur cycle


Q78. Which of the following are detritivores?

  1. Earthworms
  2. Jellyfish
  3. Millipedes
  4. Seahorses
  5. Woodlice

Select the correct answer using the code given below.

(a) 1,2 and 4 only

(b) 2,3, 4 and 5 only

(c) 1, 3 and 5 only

(d) 1, 2, 3, 4 and 5


Q79. The ‘Common Carbon Metric’, supported by UNEP, has been developed for

(a) assessing the carbon footprint of building operations around the world

(b) enabling commercial farming entities around the world to enter carbon emission trading

(c) enabling governments to assess the overall carbon footprint caused by their countries

(d) assessing the overall carbon foot-print caused by the use of fossil fuels by the world in a unit time


Q80. Which of the following have species that can establish symbiotic relationship with other organisms?

  1. Cnidarians
  2. Fungi
  3. Protozoa

Select the correct answer using the code given below.

(a) 1 and 2 only

(b) 2 and 3 only

(c) 1 and 3 only

(d) 1, 2 and 3


Q84. With reference to Water Credit’, consider the following statements :

  1. It puts microfinance tools to work in the water and sanitation sector.
  2. It is a global initiative launched under the aegis of the World Health Organization and the World Bank.
  3. It aims to enable the poor people to meet their water needs without depending on subsidies.

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


Q86. ‘R2 Code of Practices’ constitutes a tool available for promoting the adoption of

(a) Environmentally responsible practices in electronics recycling industry

(b) Ecological management of ‘Wetlands of International Importance’ under the Ramsar Convention

(c) Sustainable practices in the cultivation of agricultural crops in degraded lands

(d) ‘Environmental Impact Assessment’ in the exploitation of natural resources


Q89. What is blue carbon?

a) Carbon captured by oceans and coastal ecosystems

b) Carbon sequestered in forest biomass and agricultural soils

c) Carbon contained in petroleum and natural gas

d) Carbon present in atmosphere


Q90. In the nature, which of the following is/are most likely to be found surviving on a surface without soil?

  1. Fern
  2. Lichen
  3. Moss
  4. Mushroom

Select the correct answer using the code given below.

(a) 1 and 4 only

(b) 2 only

(c) 2 and 3

(d) 1, 3 and 4