Answer:
14.7 lbs
Explanation:
Air pressure is the weight of the air above us. It is approximately 14.7 pounds or lbs per square inch at sea level. It means that an air column weights 14.7 lbs, 1 square inch in diameter, reaching all the way up to the top of the atmosphere.
Answer:
Ca
Explanation:
It is on the left side of the periodic table where metals are located.
Yes, it is a Compound.
They both comprehend with the atoms of each sourse!
The basic substances are called elements
