The simple machine used is called atwood machine.
Answer:
a
Explanation:
a mixture is a material made up of two or more different substances which are not chemically combined. A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids.
A. Solar energy hope this helps
Answer:
The solution is: ZnS + O^2 => ZnSO
