Ice float because it's a solid. A way to explain it to a child would be by saying it has bubbles in it so that's why it floats.
The best source for his research about the mechanism of the drug would be : A peer-reviewed research article in a scientific journal ( A )
A peer-reviewed research article would be a best source for his research because peer-reviewed articles are written and reviewed by colleagues in the same scientific field of study.
An article written by an author about how a drug will alleviate pain in dogs and cats and reviewed by his peers will contain detailed information on the mechanism of such drug, therefore this article will be very informative and helpful to the student.
Hence we can conclude that , The best source for his research about the mechanism of the drug would be A peer-reviewed research article in a scientific journal.
Learn more : brainly.com/question/11707144
Más agua salada
Al analizar la superficie del planeta, sencillamente se puede estimar que un 71 % está cubierto de agua, y el restante 29 % es masa continental. Ahora bien, la superficie no equivale a la masa, por lo tanto no podemos afirmar que la Tierra sea un 71 % de agua y el resto de tierra. Debemos ser un poco más específicos.
Answer:
<em>T</em><em>he photograph shows</em><em> soil layers</em><em><u> </u></em><em><u>.</u></em><em><u>T</u></em><em><u>he darkest layer of the soil at the top of the photograph</u></em><em><u> is</u></em><em><u> The Horizon</u></em><em><u>.</u></em>
Explanation:
Called the A horizon, the topsoil is usually the darkest layer of the soil because it has the highest proportion of organic material.