Answer:
A.) a substance with ph between 0 and 7.
Explanation:
as acid has pH value between 0 to 7.
Answer:
B
Explanation:
Mass is constant. Weight varies due to gravity.
For example, On earth you weigh 75kg but on Jupiter you weigh 275kg (not accurate). Your weight has varied. However your mass is the same on both planets.
Natural gas made due to pressure and under buried layers of rock over millions of years ago
Answer:
breakdown of a substance by bacteria, yeasts, or other microorganisms
Explanation: