| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.45 |
| Score | 0% | 69% |
Which of the following is not a base unit in the metric system?
degree Fahrenheit |
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liter |
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gram |
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meter |
The Fahrenheit scale is used for measuring temperature in the British system. The metric system uses the Celsius scale.
The hottest of Earth's atmospheric layers is which of the following?
mesosphere |
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stratosphere |
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thermosphere |
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troposphere |
Temperatures again increase with altitude in the thermosphere which is the hottest (4,530 °F / 2,500 °C) atmospheric layer due to direct exposure to the Sun's radiation. However, the gas in this layer is highly diluted so even though the atoms of gas may be very high in temperature, there are too few of them to effectively transfer much heat.
Which of these is matter than cannot be separated into different types of matter by ordinary chemical methods?
compound |
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molecule |
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atom |
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element |
An element is matter than cannot be separated into different types of matter by ordinary chemical methods.
What part of the brain is responsible for for balance, movement, and muscle coordination?
medulla |
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brainstem |
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cerebellum |
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cerebrum |
The cerebellum is a large cluster of nerves at the base of the brain that's responsible for balance, movement, and muscle coordination.
Stratus clouds are __________clouds characterized by horizontal layering with a broad flat base.
all-altitude |
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low-altitude |
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high-altitude |
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mid-altitude |
Clouds are categorized based on their shape, size, and altitude. Stratus clouds are low-altitude clouds characterized by horizontal layering with a broad flat base. When stratus clouds occur on the ground the result is fog.