Question

which of the following activities can contribute to an increase in the carbon dioxide in the earth's atmosphere? i. the burning of fossil fuels ii. volcanic activity iii. condensation

Answer 1

Answer: I & II

Explanation: Burning fossil fuels such as coal can most definitely release CO2. For example, when one burns a fire, black smoke is released. Along with this, large volcanic eruptions can also eject millions of tons of CO2 into the atmosphere.