| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.29 |
| Score | 0% | 66% |
The coldest point in the Earth's atmosphere is reached in which atmospheric layer?
mesosphere |
|
thermosphere |
|
troposphere |
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stratosphere |
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.
Which of the following is the narrowest classification of life?
domain |
|
family |
|
species |
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genus |
The narrowest classification of life, species, contains organisms that are so similar that they can only reproduce with others of the same species.
Changes to an object's speed or direction of motion are caused by which of the following?
power |
|
work |
|
kinetic energy |
|
a force |
Force is applied to change an object's speed or direction of motion.
What type of cloud is responsible for fog?
cirrus |
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stratus |
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cumulonimbus |
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cumulus |
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.