Carbon Cycle -Multiple Choice Questions Quiz

Interactive MCQs on “Carbon Cycle”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is the main process by which carbon is released into the atmosphere?

(a) Photosynthesis
(b) Respiration
(c) Combustion
(d) Erosion

Question 2: Which of the following is a natural sink for carbon?

(a) Oceans
(b) Fossil fuels
(c) Atmosphere
(d) Cars

Question 3: What is the main process by which carbon is removed from the atmosphere?

(a) Photosynthesis
(b) Respiration
(c) Combustion
(d) Erosion

Question 4: Which of the following human activities is NOT a source of carbon emissions?

(a) Transportation
(b) Deforestation
(c) Agriculture
(d) Recycling

Question 5: What happens to carbon that is absorbed by the soil?

(a) It is converted into organic matter
(b) It is released into the atmosphere through erosion
(c) It is stored for millions of years
(d) It is destroyed

Question 6: Which of the following is NOT a source of carbon dioxide in the atmosphere?

(a) Burning fossil fuels
(b) Deforestation
(c) Ocean acidification
(d) Photosynthesis

Question 7: Which of the following is NOT a sink for carbon dioxide in the carbon cycle?

(a) Oceans
(b) Soil
(c) Atmosphere
(d) Fossil fuels

Question 8: Which of the following processes does NOT contribute to the carbon cycle?

(a) Photosynthesis
(b) Respiration
(c) Combustion
(d) Fermentation

Question 9: Which of the following is an example of carbon sequestration?

(a) Burning fossil fuels
(b) Deforestation
(c) Planting trees
(d) Acidification of the oceans

Question 10: Which of the following is a potential consequence of increased carbon dioxide in the atmosphere?

(a) Increased ocean acidity
(b) Decreased greenhouse effect
(c) Cooling of the Earth's surface
(d) Reduced plant growth