Explanation
- A
1 only
1 only. Urea (and nutrient-based subsidy) is still administered, not a free retail market.
- B
2 and 3 only
2 and 3 only. Ammonia for urea from natural gas; sulphur for phosphoric acid as a refinery by-product. Fertiliser MRP is not fully market-driven.
- C
2 only
2 only. Under-counts sulphur.
- D
1, 2 and 3
All three. Statement 1 fails.
Summary. Official key is (b) 2 and 3 only. Urea’s ammonia is gas-based; sulphur for phosphate fertiliser is a refinery by-product. Retail fertiliser prices are not left to the market — urea is controlled and others are subsidised under NBS.
Same topic · past papers
UPSC has asked this before
These previous-year questions sit on the same topic. Open one to practise the earlier ask.
-
2024 · Q31 · General Studies · 2 marks
With reference to radioisotope thermoelectric generators (RTGs), consider the following statements: 1. RTGs are miniature fission reactors. 2. RTGs are used for powering the onboard systems of spacecrafts. 3. RTGs can use Plutonium-238, which is a by-product of weapons development Which of the statements given above are correct?