Mining companies must restore the land that they use, especially in openpit mining. mining companies may also have to clean up the water and replace the solid that is being moved.
a. yes
b. no

The statement given in the question is absolutely correct. So "Yes" is the answer and so the right option is option "a". This is a great short term solution. These steps can help restoring the balamce of nature and also prevent certain accidents. Maining can actually alter the topography of an area and cause a permanent change.Mining has the potential of destroying the useful micro organisms that live on the surface of the soil. So long term damage to soil and vegetation is an integral part of mining. Productivity of the adjacent soils can also get degraded.