| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.43 |
| Score | 0% | 69% |
What type of cloud is responsible for fog?
cirrus |
|
cumulus |
|
cumulonimbus |
|
stratus |
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 states of matter exists at the highest temperature?
gas |
|
solid |
|
liquid |
|
none of these |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
In cell biology, where does DNA replication take place?
cytoplasm |
|
mitochondria |
|
nucleus |
|
Golgi apparatus |
The cell nucleus contains the genetic material of the cell and is where DNA replication takes place.
Which of these vitamins doesn't come from food?
D |
|
A |
|
Potassium |
|
C |
Vitamins are necessary for a wide variety of bodily processes. Some vitamins like Vitamins A and C come from diet but others, like Vitamin D, are generated in response to sunlight.
A transition zone between two air masses is called:
boundary |
|
fog |
|
thunderstorm |
|
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.