C) has partial positive and negative charges at each end
Answer:
A. It Shows that organisms have changed over time.
Explanation:
Answer: Water. The pH level is 7.
Explanation: The scale has values ranging from zero (the most acidic) to 14 (the most basic). As you can see from the pH scale above, pure water has a pH value of 7. This value is considered neutral—neither acidic or basic.