8. On the scale below, add labels to show the pH of these substances: milk, soap, water, vinegar, lemon, and ammonia, 0 7 2 3 S 6 7 (8 9 10 11 12 13 14​

About 3% of the water on earth is freshest. only about 40% of that freshwater is available for human use. why is so much freshwater unavailable for human use?

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

How does the atmosphere to make earth livable? check all that apply. causes the seasons contains oxygen provides warmth creates important nutrients blocks harmful energy from the sun plz like !