Answer:
Bowling Ball
Explanation:
The bowling ball has the highest gravitational potential energy because the height at which it will fall is the highest of the rest objects on the table.
I think it is D
Hope this help you?
Answer:
b) Silicon and oxygen
Explanation:
A compound is a pure substance that contains two or more atoms chemically joined together. Sand is regarded as a 'compound' because it is made up of two or more atoms that are chemically bonded to one another.
Sand is said to predominantly contain silica, which has a chemical formula of SiO2. Hence, sand can be said to be a compound containing one atom of silicon (Si) and two atoms of oxygen (O2).