Answer:
B.Shelter
Explanation:
Density is defined as mass, Shelter is the only thing that did not contain mass
Answer:
2. Fresh water is essential to all life on earth.
and
4. Most of earth's water is stored in the oceans
Explanation:
Hope this helps you! :)
Answer:
b hummingbirds have the ability to hover while drinking nectar
Explanation:
because this allows for power in both the upward and downward beats of the hummingbirds wings
Answer:
They test or measure something.
Explanation:
Primary research articles report on research that has been completed. Therefore, a primary research article will review and analyze studies, and will state the research question and hypotheses of the studies presented. A primary research article does not test or measure anything, but will report on studies that do.