What surprising discovery did geologists make about Earth's inner core?
Researchers discover the Earth's inner-inner core-Science Now 32

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Science, Geography
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11th Grade - University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
It is cooling at an unprecedented rate.
It is composed entirely of water.
It is larger than the moon.
It has a distinct inner core of its own.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What did the Duke University study find about wastewater from oil and gas drilling?
It contains no hazardous chemicals.
It is safe for human consumption.
It has high levels of ammonium and iodine.
It is completely treated by current practices.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is one of the causes of wildfires in the US according to the NSF-funded engineers?
Lightning strikes
Hot metal fragments
Volcanic eruptions
Spontaneous combustion
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do researchers believe haptic technology could benefit users?
By reducing screen time
By increasing battery life
By improving internet speed
By making virtual keyboards feel real
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What did researchers discover about how the brain interprets tactile feedback?
It always registers multiple bumps as separate.
It registers two identical bumps as one if they match finger spacing.
It cannot interpret tactile feedback at all.
It registers tactile feedback as visual stimuli.
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