Question

Which of the human activity has added the largest amounts of carbon to the atmosphere?

• A. Burning fossil fuels
• B. Mining fossil fuels
• C. Increasing soil erosion
• D. Increasing food consumption

Answer 1

The correct option is A Burning fossil fuels

The burning of fossil fuels leads to an increase in the carbon dioxide concentration. The fuels burns in the presence of oxygen and forms oxides. These oxides can further combine with the rain water and fall on earth as acid rain. Acid rains destroy the flora and fauna on the earth.

Mining of fossil fuels does not produce oxides so it is not a prominent cause of the acid rain.

Soil erosion is depleting the top layer of the soil due to some natural or physical factors.

Increased food consumption may hamper the rate of sustainable agricultural growth.

So, the correct answer is option A.