| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.99 |
| Score | 0% | 60% |
I biome is made up of naturally occurring flora and fauna. Fauna is which of the following?
minerals |
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animals |
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habitats |
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plants |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
Which of the following substances gives up positively charged hydrogen ions (H+) when dissolved in water?
alkaline |
|
solution |
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acid |
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base |
An acid is a substance that gives up positively charged hydrogen ions (H+) when dissolved in water. A base (alkaline) gives up negatively charged hydroxide ions (OH-) when dissolved in water. pH is a scale that measures of how basic or acidic a solution is. Numbered from 0 to 14, solutions with a pH of 7 are neutral, less than 7 are acidic, more than 7 are alkaline.
Which of the following states of matter exists at the highest temperature?
none of these |
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gas |
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liquid |
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solid |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
What kind of weather front is likely to create clouds and storms?
stationary front |
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cold front |
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warm front |
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temperate front |
A warm front is the boundary between warm and cool (or cold) air when the warm air is replacing the cold air. Warm air at the surface pushes above the cool air mass creating clouds and storms.
Which of the following would you find in the side view mirror of a car?
concave lens |
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concave mirror |
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convex lens |
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convex mirror |
A concave (or converging) mirror bulges inward and focuses reflected light on the mirror's focal point where the mirror's angles of incidence converge. In contrast, a convex (or diverging) mirror bulges outward and diffuses the light waves that strike it. A common use of a concave mirror is in a reflecting telescope, a common use of a convex mirror is in the side view mirror of a car.