Question

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.

Answer 1

directional drilling.

Answer 2

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.

Answer 3

They are usually found deep below Earth’s surface—more than 1,000 ft underground.

Answer 4

_____ involves keeping the item for a short amount of time before moving it elsewhere.(1 point)
Responses

Holding
Holding

Receiving
Receiving

Unloading
Unloading

Loading

Answer 5

Holding

Answer 6

When a person advertises a product, she is (1 point)
Responses

delivering.
delivering.

marketing.
marketing.

unloading.
unloading.

communicating.

Answer 7

marketing.