Answer:
July and January
Explanation:
In January the average temperature overnight is 23.8°F.
In July the average day time temperature rises to 92.3°F.
Answer:
The body uses lipids as an energy store, as insulation and to make cell membranes.
Explanation:
Lipids include fats (solid at room temperature) and oils (liquid at room temperature). Lipids are an important part of a healthy diet.
Answer:
If four samples have the same volume, the sample with the highest mass will have the highest density, i.e. sample Z.
Explanation:
The density expresses the amount of mass that occupies a given volume, and knowing the mass and volume of a solid, the density can be determined by the formula:
<em> ρ = m/V
</em>
From this formula it can be determined that <u>density is directly proportional to mass and inversely proportional to volume</u>.
Of the four samples, the highest mass is in the sample Z (312), so this sample has the highest density.
