| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.09 |
| Score | 0% | 62% |
What type of cloud is responsible for fog?
cumulonimbus |
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cumulus |
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stratus |
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cirrus |
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.
Which of the following is the formula for power?
\(P = {\vec{w} \over t}\) |
|
\(P = {w \over t}\) |
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\(P = \vec{w}t\) |
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\(P = w t\) |
Power is the rate at which work is performed or work per unit time: \(P = {w \over t}\) and is measured in watts (W).
Cellular fermentation takes place:
aerobically |
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in the presence of oxygen |
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anaerobically |
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in plant cells |
If no oxygen is present, cellular respiration is anaerobic and will result in fermentation where either lactic acid or alcohol is used instead of oxygen.
212°F is how many °C?
-100 |
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100 |
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\(135 {5 \over 9}\) |
|
0 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (212 - 32)\)
\(C° = {5 \over 9} (180) = {{180 \times 5} \over 9}\)
\(C° = {900 \over 9}\)
\(C° = 100\)
Scavengers break down the dead bodies of plants and animals into which of the following?
simple nutrients |
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complex carbohydrates |
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producers |
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carrion |
Like decomposers, scavengers also break down the dead bodies of plants and animals into simple nutrients. The difference is that scavengers operate on much larger refuse and dead animals (carrion). Decomposers then consume the much smaller particles left over by the scavengers.