Question

The process of extracting ores from the earth’s crust is called.

Answer 1

Answer:

MINING

Explanation:

The process of extracting ores from the earth’s crust is called

MINING

Ores recovered by mining include metals, coal, , gemstones, , chalk etc

Mining is required to obtain any material that cannot be grown through agricultural processes, or feasibly created artificially in a laboratory or factory.

Mining  includes extraction of any non-renewable resource such as petroleum, natural gas, or even water.

Answer 2

Answer:

The process of extracting ores from the Earth's crust is known as mining.

Explanation:

Ores contain petroleum, coal, metal, limestone, potash, gravel, gemstones, oil shale, limestone, clay, etc. We can obtain these minerals only by the process of mining.

Most of the minerals obtained by mining are non-renewable.

Types of Mining:

• Underground mining: This is the most expensive type of mining as it requires highly developed machines to reach deep underground ores.
• Surface mining: This type of mining involves extraction less valuable minerals and hence the cost of mining is cheap.
• In-situ mining: This type of mining involves the extraction of the mineral without moving the rock containing mineral. This type of mining is also called solution mining where holes are drilled into the deposits. Mining of Uranium is mostly done by this process.
• Placer mining or open-cast mining: This is one of the oldest methods of mining. It involves excavation, transportation, concentration, and extraction of minerals from placer deposits of alluvial deposits by using water.