Open-pit mining, invented by Daniel Jackling, is a technique whereby
(1 point)
Responses
rocks and minerals are melted in large open containers.
rocks and minerals are melted in large open containers.
rocks and minerals are extracted near the earth’s surface.
rocks and minerals are extracted near the earth’s surface.
hand tools are used to perform most of the labor.
hand tools are used to perform most of the labor.
dangerous gases are released into the atmosphere.