UPSC 2022 › Environment & Ecology › Sustainable Agriculture & Forestry

3 questions · 2022 · answers as per the UPSC key

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UPSC 2022 · Q22 · Environment & Ecology › Sustainable Agriculture & Forestry · Save

“System of Rice Intensification” of cultivation, in which alternate wetting and drying of rice fields is practised, results in :

  1. Reduced seed requirement
  2. Reduced methane production
  3. Reduced electricity consumption

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
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Answer: (d) 1, 2 and 3
UPSC 2022 · Q48 · Environment & Ecology › Sustainable Agriculture & Forestry · Save

Which of the following are nitrogen-fixing plants ?

  1. Alfalfa
  2. Amaranth
  3. Chickpea
  4. Clover
  5. Purslane (Kulfa)
  6. Spinach

Select the correct answer using the code given below :

(a) 1, 3 and 4 only
(b) 1, 3, 5 and 6 only
(c) 2, 4, 5 and 6 only
(d) 1, 2, 4, 5 and 6
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Answer: (a) 1, 3 and 4 only
UPSC 2022 · Q50 · Environment & Ecology › Sustainable Agriculture & Forestry · Save

The “Miyawaki method” is well known for the :

(a) Promotion of commercial farming in arid and semi-arid areas
(b) Development of gardens using genetically modified flora
(c) Creation of mini forests in urban areas
(d) Harvesting wind energy on coastal areas and on sea surfaces
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Answer: (c) Creation of mini forests in urban areas