Question

Shivadharshini researched the ways in which ores are extracted from Earth.
What would her research show?​

Answer 1

Answer:

Hope it helps you

Explanation:

The primary methods used to extract minerals from the ground are:

Underground mining

Surface (open pit) mining

Placer mining

The location and shape of the deposit, strength of the rock, ore grade, mining costs, and current market price of the commodity are some of the determining factors for selecting which mining method to use.

Higher-grade metallic ores found in veins deep under the Earth’s surface can be profitably mined using underground methods, which tend to be more expensive. Large tabular-shaped ore bodies or ore bodies lying more than 1,000 feet (300 m) below the surface are generally mined underground as well. The rock is drilled and blasted, then moved to the surface by truck, belt conveyor, or elevator. Once at the surface, the material is sent to a mill to separate the ore from the waste rock