Highwall mining is often used when excavating an open-pit mine becomes too expensive. There are many advantages over underground mining, including the fact that it is both more cost-effective and involves less lead time.
False because technology is man made and not something we can find in a wild
Answer:
Soil erosion is the removal of soil from a position on the landscape. The two main agents of soil erosion are wind and water. Because the climate of the Great Plains is relatively dry, and strong winds are common, wind erosion is widespread throughout the region. ...
Explanation:
Mexico city is bigger by population but Los Angeles is bigger by area