| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.28 |
| Score | 0% | 66% |
Herbivores are __________ that subsist on producers like plants and fungus.
secondary consumers |
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primary consumers |
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tertiary consumers |
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scavengers |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
Which of the following is the smallest component of an element that still retains the properties of the element?
atom |
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molecule |
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element |
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neutron |
An atom is the smallest component of an element that still retains the properties of the element.
Which of the following states of matter exists at the lowest temperature?
none of these |
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gas |
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solid |
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liquid |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
Which is the proper order of Earth's atmospheric layers from the surface up to space?
thermosphere, mesosphere, stratosphere, troposphere |
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troposphere, stratosphere, mesosphere, thermosphere |
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stratosphere, troposphere, mesosphere, thermosphere |
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mesosphere, thermosphere, stratosphere, troposphere |
The troposphere is the closest layer to Earth, followed by the stratosphere, mesosphere, and finally the thermosphere which borders space.
Which of the following is not a characteristic of the Sun?
is composed of hydrogen and helium |
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makes up over 99% of the mass of the solar system |
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formed 2.6 billion years ago |
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is a yellow dwarf star |
The Sun is a G-type main-sequence star (G2V) but is informally known as a yellow dwarf star. Composed of 73% hydrogen and 25% helium, the hot plasma that makes up the Sun reaches 9,900°F (5,505°C) at the surface. It formed approximately 4.6 billion years ago and makes up 99.86% of the mass in the solar system.