List three economic materials that can be profitably extracted from placer deposits.
A)Gold, platinum, and tin
B)Diamonds, iron, and quartz
C)Sand, gravel, and silt
D)Granite, basalt, and gabbro

Question

Quizplus · Accepted Answer

Gold, platinum, and tin are commonly found in placer deposits and have significant economic value when extracted. The other options listed (B, C, and D) either do not have significant economic value or are not commonly found in placer deposits.

List Three Economic Materials That Can Be Profitably Extracted from Placer