Sometimes, heavy weight on soft soil can result in collapse of ground, resulting in asinkhole<span>. </span>Sinkholes<span> can also </span>form<span> when the land surface is changed. Areas that have a bedrock made of limestone, salt deposits or carbonate rock are most susceptible to erosion and the </span>formation<span> of such holes.</span>
What i say may now help but carbon dioxide is absorbed by plants and trees so it gets rid of it