| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.37 |
| Score | 0% | 67% |
What type of cloud is responsible for fog?
cumulus |
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cumulonimbus |
|
cirrus |
|
stratus |
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.
A large naturally occurring community of flora and fauna occupying a major habitat is:
a community |
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a biome |
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a population |
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a food chain |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
When two air masses meet and neither is displaced, what kind of front is present?
warm |
|
occluded |
|
stationary |
|
cold |
When two air masses meet and neither is displaced, a stationary front is created. Stationary fronts often cause persistent cloudy wet weather.
Which of the following is the correct order for types of radiation from longest to shortest wavelength?
microwaves → radio waves → visible light |
|
visible light → ultraviolet light → radio waves |
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infrared waves → microwaves → ultraviolet 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.
In cell biology, where does DNA replication take place?
nucleus |
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cytoplasm |
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mitochondria |
|
Golgi apparatus |
The cell nucleus contains the genetic material of the cell and is where DNA replication takes place.