| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.00 |
| Score | 0% | 60% |
__________ and __________ pair to strengthen bones.
vitamin D, magnesium |
|
iron, calcium |
|
calcium, vitamin A |
|
vitamin D, calcium |
Vitamin D helps calcium strengthen bones while also aiding muscle, nerve, and immune system function.
-40°F is how many °C?
\(-{40 \over 9}\) |
|
-40 |
|
\({40 \over 9}\) |
|
-8 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (-40 - 32)\)
\(C° = {5 \over 9} (-72) = {{-72 \times 5} \over 9}\)
\(C° = {-360 \over 9}\)
\(C° = -40\)
Which of the following is not a terrestrial planet?
Jupiter |
|
Mercury |
|
Earth |
|
Venus |
The four planets closest to the Sun (Mercury, Venus, Earth, and Mars) are called terrestrial (Earth-like) planets because, like the Earth, they're solid with inner metal cores covered by rocky surfaces.
In the metric system, what prefix represents 103?
milli |
|
centi |
|
kilo |
|
mega |
Kilo is the metric system prefix for 103.
Which of the following represents the largest value?
1 ML |
|
1 kL |
|
1 mL |
|
1 cL |
Mega (M) is 106, kilo (k) is 103, centi (c) is 10-2, milli (m) is 10-3 so 1 ML represents the largest value.