| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.98 |
| Score | 0% | 60% |
Convert -20C° to F°.
36 |
|
-36 |
|
78 |
|
-4 |
To convert from C° to F° use:
\(F° = {9 \over 5}C° + 32\)
\(F° = {9 \over 5}(-20) + 32\)
\(F° = {-180 \over 5} + 32\)
\(F° = -36 + 32 = -4\)
In the classification of life, which of the following is not a kingdom?
animals |
|
bacteria |
|
fungi |
|
plants |
Below domain, life is classified into six kingdoms: plants, animals, archaebacteria, eubacteria, and fungi. The last kingdom, protists, include all microscopic organisms that are not bacteria, animals, plants or fungi. (Archaebacteria and eubacteria are sometimes combined into a single kingdom, monera.)
__________ is caused by a lack of Vitamin C.
scurvy |
|
shingles |
|
diabetes |
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anemia |
Scurvy is a difficiency disease caused by a lack of Vitamin C in the diet.
Which of the following temperatures is least like the others?
absolute zero |
|
-273°C |
|
0K |
|
32°F |
Absolute zero is the coldest possible temperature in the universe. In the Kelvin scale, absolute zero is 0K and in the Celsius scale it is -273°C.
pH is a scale that measures of how basic or acidic a solution is. A solution with a pH of 4 is:
neutral |
|
basic |
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acidic |
|
alkaline |
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.