Correct answer: (a) Carbon captured by oceans and coastal ecosystems
Explanation
- A
Carbon captured by oceans and coastal ecosystems
Carbon stored by oceans and coastal ecosystems. Mangroves, seagrass, salt marsh — blue carbon.
- B
Carbon sequestered in forest biomass and agricultural soils
Forests and soils. That is green / terrestrial carbon.
- C
Carbon contained in petroleum and natural gas
Petroleum and gas. Fossil carbon.
- D
Carbon present in atmosphere
Atmospheric CO2. The stock in air, not ‘blue’.
Summary. Official key is (a). Blue carbon is carbon captured and stored in marine and coastal ecosystems — mangroves, tidal marshes, seagrass beds.
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.
-
2023 · Q53 · General Studies · 2 marks
Consider the following statements: 1. Carbon fibres are used in the manufacture of components used in automobiles and aircrafts. 2. Carbon fibres once used cannot be recycled. Which of the statements given above is/are correct? -
2020 · Q85 · General Studies · 2 marks
Which one of the following statements best describes the term 'Social Cost of Carbon'? It is a measure, in monetary value, of the