Answer:
change in a population through genetic variation over time
Explanation:
Answer:
pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water. Water that has more free hydrogen ions is acidic, whereas water that has more free hydroxyl ions is basic. Since pH can be affected by chemicals in the water, pH is an important indicator of water that is changing chemically.
Answer:
Option C, the sun is positioned to revolve around Earth
Explanation:
Please see the attachment
Answer:
you're a nice person
Explanation:
<h3>your a wonderful person and you keep your words you dont let me down and your very intelligent ilu</h3>
<span>
because light waves travel at the speed of 300,000 and sound waves travel
hope it help ;)</span>