3. How does mining impact the environment?
4. Distinguish benveen open cast mining and underground mining.
5. Why is it important to conserve minerals:
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Answer:
Environmental impacts of mining can occur at local, regional, and global scales through di
rect and indirect mining practices. Impacts can result in erosion, sinkholes, loss of biodiversity, or the contamination of soil, groundwater, and surface water by the chemicals emitted from mining processes.
There are many differences between open cut and underground mining. When minerals and deposits are found close to the surface and spread across a large distance, the best way to mine is to use the open cut mining method. ... Next the waste rock layer is removed and a pit is dug into the ground to reach the mineral seam.
Conservation of mineral resources is essential because they are a country's valuable possession. Some methods by which we can conserve minerals are: Minerals should be used in a planned and sustainable manner. ... Recycling of metals also results in the conservation of mineral resources.
Answer:
1. Mining adversely affects the environment by inducing loss of biodiversity, soil erosion, and contamination of surface water, groundwater, and soil. ... The leakage of chemicals from mining sites can also have detrimental effects on the health of the population living at or around the mining site.
2. In surface mining, the topsoil and bedrock is removed to access the ore; all done from the surface. In underground mining, the bedrock is kept intact, and tunnels are used to access the ore from below.
3.
Conservation of mineral resources is essential because they are a country's valuable possession. Some methods by which we can conserve minerals are: Minerals should be used in a planned and sustainable manner. ... Recycling of metals also results in the conservation of mineral resources.