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RAS question

Match List-I (Concept) with List-II (Definition/Description): List-I: A. Carbon Footprint B. Carbon Sequestration C. Carbon Neutrality D. Net Zero Emissions List-II: 1. Achieving balance between greenhouse gases emitted and removed from the atmosphere across all sectors 2. Total greenhouse gases produced by human activities, expressed in CO2 equivalent 3. Process of capturing and storing atmospheric CO2 in forests, soil, or geological formations 4. Balancing CO2 emissions with equivalent CO2 removal or offsetting Choose the correct answer:

Correct answer: (A) A-2, B-3, C-4, D-1.

Carbon Footprint-2, Carbon Sequestration-3, Carbon Neutrality-4, and Net Zero Emissions-1 form the correct matching.

  1. (A)

    A-2, B-3, C-4, D-1

  2. (B)

    A-3, B-2, C-1, D-4

  3. (C)

    A-2, B-3, C-1, D-4

  4. (D)

    A-4, B-1, C-2, D-3

Explanation

A carbon footprint is a measure of the greenhouse gases produced by human activity, expressed in CO2 equivalent, so Carbon Footprint pairs with 2. Carbon sequestration is the capture and storage pathway through forests, oceans, soil and geological formations, while the IPCC glossary also treats carbon dioxide removal as removing CO2 from the atmosphere and storing it in geological, terrestrial or ocean reservoirs. Carbon neutrality balances CO2 emissions with equivalent removal or offsets, so Carbon Neutrality pairs with 4. Net zero emissions is broader: the IPCC defines net zero greenhouse gas emissions as a balance between metric-weighted anthropogenic GHG emissions and removals over a specified period, so Net Zero Emissions pairs with 1.

Why the other options are wrong

  • (B) A carbon footprint measures total greenhouse-gas output, while carbon sequestration is the capture and storage of CO2.
  • (C) Carbon neutrality involves CO2-specific balancing, while net zero emissions involves economy-wide greenhouse-gas balancing.
  • (D) Carbon Footprint is not offsetting, Carbon Sequestration is not sector-wide GHG balance, Carbon Neutrality is not total emissions produced, and Net Zero is not CO2 storage.

Concept

Basic climate-change terminology under Environment and Ecology separates measuring emissions, storing CO2, offsetting CO2, and balancing all greenhouse gases. RAS environmental policy often depends on these distinctions.

Source

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