Answer: They lead to contaminated groundwater / water supplies and can cause erosion, sinkholes, and landslides.
Explanation: Chemicals in tailing piles could leach into the soil and contaminate the groundwater. This could negatively impact the water supply for any surrounding towns or cities. Also, tailing piles can cause erosion, sinkholes, and landslides since there are no trees or plants there to hold the sediments in place with their roots.
Billy gets frustrated and starts to cry. He pushes his bike down on the lawn and throws his helmet off. Then he tells his father that he doesn't want to learn how to ride a bike.
When granite is subjected to intense heat and pressure, it changes into a metamorphic rock called gneiss. Slate is another common metamorphic rock that forms from shale
