Pure water has a pH level of 7, which means it is neutral on the pH scale. If you want to increase the pH of water, you must add an alkaline substance to it. The pH scale ranges from 0 to 14, with anything above 7 being alkaline, and anything below 7 being acidic.
Answer:
C. Increased Aquatic Plant Population
Explanation:
If the wolves eat the beavers than there is less beavers. If there is less beavers than there are more aquatic plants.
Answer:
Option B, 
Explanation:
Given-
The average surface area of one foot pad of an elephant is

Weight of an Asian elephant is
newton
As we know, pressure is equal to total weight divided by total area of the surface on which it is concentrated.
Thus, pressure on one foot pad of elephant is 

Hence, option B is correct answer
You could do this: do the same shape but one shaded and one not
To show that female expressed that trait
Hope this helps you