| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.97 |
| Score | 0% | 59% |
The coldest point in the Earth's atmosphere is reached in which atmospheric layer?
thermosphere |
|
stratosphere |
|
mesosphere |
|
troposphere |
In the mesosphere, temperature again drops as altitude increases until the coldest point in the Earth's atmosphere, the mesopause, is reached where temperatures fall to −225 °F (−143 °C).
Herbivores are __________ that subsist on producers like plants and fungus.
secondary consumers |
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scavengers |
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primary consumers |
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tertiary consumers |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
The dwarf planet Pluto is located where?
in the Kuiper Belt |
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outside the solar system |
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between the orbits of Jupiter and Saturn |
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in the asteroid belt |
The Kuiper Belt is similar to the asteroid belt but much larger. Extending beyond the orbit of Neptune, it contains objects composed mostly of frozen methane, ammonia, and water. Most notably, the Kuiper Belt is home to Pluto, a dwarf planet that, until a 2006 reclassification, was considered the ninth planet of the solar system.
Which is the proper order of Earth's atmospheric layers from the surface up to space?
stratosphere, troposphere, mesosphere, thermosphere |
|
thermosphere, mesosphere, stratosphere, troposphere |
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mesosphere, thermosphere, stratosphere, troposphere |
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troposphere, stratosphere, mesosphere, thermosphere |
The troposphere is the closest layer to Earth, followed by the stratosphere, mesosphere, and finally the thermosphere which borders space.
During digestion, after proteins are broken down where does the undigested food go next?
stomach |
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esophagus |
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large intestine |
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small intestine |
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.