Answer:
While it is difficult to determine exactly how many Natives lived in North America before Columbus, estimates range from a low of 2.1 million to 7 million people to a high of 18 million.
Explanation:
Providing energy. Carbs are a quick source of energy and easily broken down. Lipids are stored energy that can be broken down when needed. Both provide energy but in different ways
<span>(1) Does the pH of water affect the growth of radish plants?
</span><span>(2) pH of the water
</span><span>(1) repeating the experiment several times</span>
