Why was placer mining the most widely used method for mining for gold?

Because it was affordable to a large number of prospectors.

Explanation:

Placer mining was the most widely used method for mining for gold because it was affordable to a large number of prospectors. Placer mining is a method that uses water to excavate, transport and recover heavy minerals from deposits. It was widely used to find gold during the Gold Rush. The method takes advantage of the fact that gold has a higher density than the lighter siliceous materials with which it is found. This causes gold to sink more rapidly than the other materials.

the big question intentionally left by halloween 2018 is whether michael myers is really dead or not. the last time we see him, michael is trapped in the cage just as laurie's house starts to burn. however, when the film cut back to the flames, the room appears empty.

explanation:

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