| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.86 |
| Score | 0% | 57% |
When the clouds become too saturated with water, the water is released as precipitation in the form of:
ice |
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snow or ice |
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snow |
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rain |
Rising into the atmosphere, the water condenses into clouds. When the clouds become too saturated with water, the water is released as snow or ice precipitation which may warm as it falls to reach Earth as rain.
In the metric system, what prefix represents 10-3?
kilo |
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mega |
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milli |
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centi |
In the metric system, milli is the prefix for 10-3.
Velocity is the rate at which an object changes position. What is the formula for velocity?
none of these |
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\(\vec{v} = { t \over \vec{d} } \) |
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\(\vec{v} = \vec{d}t \) |
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\(\vec{v} = { \vec{d} \over t } \) |
Velocity is the rate at which an object changes position. Rate is measured in time and position is measured in displacement so the formula for velocity becomes \(\vec{v} = { \vec{d} \over t } \)
Which of the following is the primary difference between a comet and an asteroid?
asteroids have a coma |
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asteroids contain frozen water |
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comets orbit the Sun |
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comets have an atmosphere |
A comet is a loose collection of ice, dust, and small rocky particles that, in contrast to an asteroid, has an extended atmosphere surrounding the center. When passing close to the Sun, this atmosphere warms and begins to release gases forming a visible coma or tail.
Traits represented by genes may be which of the following?
dominant |
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recessive |
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expressed |
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all of these |
The traits represented by genes are inherited independently of each other (one from the male and one from the female gamete) and a trait can be dominant or recessive. A dominant trait will be expressed when paired with a recessive trait while two copies of a recessive trait (one from each parent) must be present for the recessive trait to be expressed.