<span>The high and low tide are caused by the gravitational forces between the earth and the moon</span>
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.
because its the power house of the call
Photosynthesis uses carbon and h20 as the reactants
