The technology that allows engineers to penetrate rock at multiple angles instead of simply a straight line is called(1 point)
Responses
underground mining.
underground mining.
blasting.
blasting.
placer mining.
placer mining.
directional drilling.
directional drilling.
What is true about most higher-grade metallic ores?(1 point)
Responses
They are usually found very close to Earth’s surface—less than 1,000 ft underground.
They are usually found very close to Earth’s surface—less than 1,000 ft underground.
Most of them can be extracted using the placer method.
Most of them can be extracted using the placer method.
They are usually found deep below Earth’s surface—more than 1,000 ft underground.
They are usually found deep below Earth’s surface—more than 1,000 ft underground.
Most of them can be extracted without requiring drilling.
They are usually found deep below Earth’s surface—more than 1,000 ft underground.
_____ involves keeping the item for a short amount of time before moving it elsewhere.(1 point)
Responses
Holding
Holding
Receiving
Receiving
Unloading
Unloading
Loading
Holding
When a person advertises a product, she is (1 point)
Responses
delivering.
delivering.
marketing.
marketing.
unloading.
unloading.
communicating.