Answer:
Option: by releasing carbon dioxide into the atmosphere
Explanation:
The burning of fossil fuels created by human activities on earth by burning of coal, wood and oil increased the amount of carbon dioxide in the atmosphere. The effects of the greenhouse effect noticed in increasing temperature. Earth is getting warmer in some region which is leading to more evaporation and precipitation. The warming of the Oceans and the melting of the glaciers is another effect of the greenhouse.
