| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.17 |
| Score | 0% | 63% |
When the clouds become too saturated with water, the water is released as precipitation in the form of:
snow |
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ice |
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rain |
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snow or ice |
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 a eukaryotic cell, which organelles deal with proteins?
endoplasmic reticulum |
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ribosomes |
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all of these deal with proteins |
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Golgi apparatus |
The nucleus of a eukaryotic cell contains the genetic material of the cell and is surrounded by cytoplasm which contains many organelles. Ribosomes produce proteins, endoplasmic reticulum helps synthesize proteins and fats, and Golgi apparatus prepares proteins for use.
A transition zone between two air masses is called:
fog |
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thunderstorm |
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boundary |
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front |
An air mass is a large body of air that has similar moisture (density) and temperature characteristics. A front is a transition zone between two air masses.
pH is a scale that measures of how basic or acidic a solution is. A solution with a pH of 4 is:
neutral |
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alkaline |
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acidic |
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basic |
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.
An air mass is a large body of air that has which of the following characteristics?
similar temperature |
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all of these |
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similar density |
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similar moisture |
An air mass is a large body of air that has similar moisture (density) and temperature characteristics. A front is a transition zone between two air masses.