| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.05 |
| Score | 0% | 61% |
In the food chain, omnivores may be which of the following?
secondary or tertiary consumers |
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secondary consumers or scavengers |
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primary or tertiary consumers |
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primary or secondary consumers |
Secondary or tertiary consumers may be omnivores.
Which of the following is not true about mass and weight?
weight is the force exerted on an object by gravity |
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mass is the amount of matter something has |
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weight depends on the location where it is measured |
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mass depends on the location where it is measured |
Mass is the amount of matter something has while weight is the force exerted on an object's mass by gravity. So, although a person's mass doesn't change when going from the Earth to the Moon, their weight will decrease because the force of the Moon's gravity is much less than that of Earth.
Examples of primary consumers include:
all of these |
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fish |
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rats |
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cows |
Primary consumers (herbivores) subsist on producers like plants and fungus. Examples are grasshoppers, cows, and plankton.
What type of cloud is responsible for fog?
cumulonimbus |
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cumulus |
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cirrus |
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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.
The biosphere consists of which of the following?
all of these |
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hydrosphere |
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lithosphere |
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atmosphere |
The biosphere is the global ecological system integrating all living beings and their relationships. This includes their interactions with the lithosphere (the rigid outer part of the earth, consisting of the crust and upper mantle), hydrosphere (all surface water), and atmosphere (the envelope of gases surrounding the planet).