What properties of silica sand make it useful in hydraulic fracturing?(1 point)
Responses
Its abrasiveness aids in drilling.
Its abrasiveness aids in drilling.
It dissolves easily in oil.
It dissolves easily in oil.
It can withstand great pressure.
It can withstand great pressure.
It absorbs excess moisture.
It has a high crush resistance.
Which of the following statements about mining booms is true?(1 point)
Responses
The population tends to grow in the long term.
The population tends to grow in the long term.
Unemployment rates tend to increase in the short term.
Unemployment rates tend to increase in the short term.
Property values tend to increase in the short term.
Property values tend to increase in the short term.
The economy tends to grow in the long term.
The economy tends to grow in the long term.
The economy tends to grow in the long term.
How have phosphate minerals most affected human activity?(1 point)
Responses
Many people left their homes to seek wealth from phosphate mining in the 1800s.
Many people left their homes to seek wealth from phosphate mining in the 1800s.
Humans have relied heavily on phosphate minerals to develop new technology.
Humans have relied heavily on phosphate minerals to develop new technology.
Phosphate mining operations have ceased due to environmental impacts.
Phosphate mining operations have ceased due to environmental impacts.
Using phosphate minerals in fertilizer allowed humans to grow more crops.
Using phosphate minerals in fertilizer allowed humans to grow more crops.
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Using phosphate minerals in fertilizer allowed humans to grow more crops.
Two unknown mineral samples, A and B, are rubbed against each other. Mineral A scratches mineral B. What can you infer about the minerals?(1 point)
Responses
Mineral A is harder than mineral B.
Mineral A is harder than mineral B.
Mineral B is harder than mineral A.
Mineral B is harder than mineral A.
Mineral A is more dense than mineral B.
Mineral A is more dense than mineral B.
Mineral B is more dense than mineral A.
Mineral B is more dense than mineral A.
Mineral A is harder than mineral B.
Light bounces off of a mineral sample. What can you say about the mineral?(1 point)
Responses
The mineral is translucent.
The mineral is translucent.
The mineral is refractive.
The mineral is refractive.
The mineral is transparent.
The mineral is transparent.
The mineral is reflective.