With reference to the activity of mining, consider the following statements:
1. Mining operations usually create a positive environmental impact, both during the mining activity and after the mine has closed
2. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay
Which of the above statements is/are true?1
Only 1
2
Only 2
3
Both 1 and 2
4
More than one of the above
5
None of the above