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Home › Environmental Studies › Environmental Studies - Carbon Emissions and Sequestration

Environmental Studies - Carbon Emissions and Sequestration — Environmental Studies Questions & Practice

Practise 1,200 Environmental Studies - Carbon Emissions and Sequestration questions from Environmental Studies for competitive exams such as UPSC, Banking, SSC and Railway. Read the worked questions below, check every answer with an explanation, and track what you get wrong.

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Practice questions on Environmental Studies - Carbon Emissions and Sequestration — with answers

Try each question first, then open the answer. Explanations are included.

1. A factory emits 79000 tonnes of CO2 per year. A newly planted forest in the region can sequester 8 tonnes of CO2 per hectare per year. How many hectares of this forest would be needed to fully offset the factory's annual emissions?

  1. A9874.5
  2. B9875
  3. C8754.7789
  4. D9870
Show answer

Answer: B

Hectares needed = Total emissions / Sequestration rate per hectare = 79000 / 8 = 9875 hectares.

2. A factory emits 98000 tonnes of CO2 per year. A newly planted forest in the region can sequester 10 tonnes of CO2 per hectare per year. How many hectares of this forest would be needed to fully offset the factory's annual emissions?

  1. A9800
  2. B9802
  3. C10239.7977
  4. D9021.4515
Show answer

Answer: A

Hectares needed = Total emissions / Sequestration rate per hectare = 98000 / 10 = 9800 hectares.

3. A factory emits 70000 tonnes of CO2 per year. A newly planted forest in the region can sequester 10 tonnes of CO2 per hectare per year. How many hectares of this forest would be needed to fully offset the factory's annual emissions?

  1. A7351.482
  2. B8390.4136
  3. C7938.4528
  4. D7000
Show answer

Answer: D

Hectares needed = Total emissions / Sequestration rate per hectare = 70000 / 10 = 7000 hectares.

4. A factory emits 80500 tonnes of CO2 per year. A newly planted forest in the region can sequester 5 tonnes of CO2 per hectare per year. How many hectares of this forest would be needed to fully offset the factory's annual emissions?

  1. A16100
  2. B14534.6299
  3. C16098
  4. D16102
Show answer

Answer: A

Hectares needed = Total emissions / Sequestration rate per hectare = 80500 / 5 = 16100 hectares.

5. A factory emits 76000 tonnes of CO2 per year. A newly planted forest in the region can sequester 10 tonnes of CO2 per hectare per year. How many hectares of this forest would be needed to fully offset the factory's annual emissions?

  1. A7601
  2. B7598
  3. C7600
  4. D7599.5
Show answer

Answer: C

Hectares needed = Total emissions / Sequestration rate per hectare = 76000 / 10 = 7600 hectares.

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