| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.63 |
| Score | 0% | 73% |
Saturated fats can __________ LDL ("bad") cholesterol while unsaturated fats can __________ it.
decrease, raise |
|
stabilize, raise |
|
raise, decrease |
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decrease, stabilize |
Saturated fats can raise LDL ("bad") cholesterol while unsaturated fats can decrease it.
Which of the following is not one of the outer planets?
Neptune |
|
Uranus |
|
Jupiter |
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Venus |
In contrast to the solid terrestrial planets, the outer planets (Jupiter, Saturn, Uranus, and Neptune) consist of hydrogen and helium gas and water.
Sound travels fastest through which of the following media?
vacuum |
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metal |
|
air |
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water |
The speed of a sound wave will vary with the medium. Sound travels fastest through media that has particles that are very close together, like metal. Thus, it travels faster through water than through air and doesn't travel at all through a vacuum (there are no particles in empty space to vibrate).
Which of the following describes the Earth's mantle?
dense |
|
all of these |
|
makes up most of Earth's volume |
|
hot |
Mantle makes up 84% of the Earth's volume and has an average thickness of approximately 1,800 miles (2,900 km). It is dense, hot, and primarily solid although in places it behaves more like a viscous fluid as the plates of the upper mantle and crust gradually "float" along its circumference.
Which of these is not a type of fat?
monounsaturated |
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polyunsaturated |
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cholesterol |
|
saturated |
Fats come in three types, saturated (meats, shellfish, eggs, milk), monounsaturated (olives, almonds, avocados), and polyunsaturated (vegetable oils).