| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.33 |
| Score | 0% | 67% |
An air mass is a large body of air that has which of the following characteristics?
similar density |
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similar temperature |
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all of these |
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similar moisture |
An air mass is a large body of air that has similar moisture (density) and temperature characteristics. A front is a transition zone between two air masses.
Large, puffy, mid-altitude clouds with a flat base and a rounded top describe which of the following?
cirrus clouds |
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stratus clouds |
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fog |
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cumulus clouds |
Cumulus clouds are large, puffy, mid-altitude clouds with a flat base and a rounded top. These clouds grow upward and can develop into a cumulonimbus or thunderstorm cloud.
In cell biology, where does DNA replication take place?
cytoplasm |
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Golgi apparatus |
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nucleus |
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mitochondria |
The cell nucleus contains the genetic material of the cell and is where DNA replication takes place.
Elements that belong to the same period in the Periodic Table of the Elements have the same number of:
atomic mass units |
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electron shells |
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electrons |
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protons |
The rows of the Periodic Table are called periods and contain elements that have the same number of electron shells ordered from lower to higher atomic number.
Which of the following is the correct order for types of radiation from longest to shortest wavelength?
infrared waves → microwaves → ultraviolet light |
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visible light → ultraviolet light → radio waves |
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microwaves → radio waves → visible light |
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radio waves → visible light → gamma rays |
The electromagnetic spectrum covers all possible wavelengths and frequencies of radiation. From lowest frequency (longest wavelength) to highest frequency (shortest wavelength) radiation: radio waves → microwaves → infrared waves → visible light → ultraviolet light → X-rays → gamma rays.