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Drag the name of the type of mining into the box next to the correct description. One name will not be used. a technique that used a trough to separate gold from gravel a type of mining in which minerals were found in loose sand and gravel a technique that involved digging tunnels along the veins of gold and breaking up tons of ore a type of mining that used water under high pressure to blast away dirt, exposing the minerals underneath

Respuesta :

Lanuel

Answer:

1. Sluicing.

2. Placer mining.

3. Hard rock mining.

4. Hydraulic mining.

Explanation:

Mining can be defined as the process of extracting mineral resources from the Earth's surface such as seem, placer, ore-body, vein etc. Some examples of minerals that can be mined are gravel, gold, chalk, petroleum, limestone, coal, potash, rock salt etc.

The various techniques used for mining includes the following;

1. Sluicing: a technique that used a trough to separate gold from gravel.

2. Placer mining: a type of mining in which minerals were found in loose sand and gravel.

3. Hard rock mining: a technique that involved digging tunnels along the veins of gold and breaking up tons of ore.

4. Hydraulic mining: a type of mining that used water under high pressure to blast away dirt, exposing the minerals underneath.

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