Answer:
open system
Explanation:
An open system is a system in which both energy and matter are exchanged with the surroundings.
Answer:
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. ... Some mixtures can be separated into their components by using physical (mechanical or thermal) means.
Explanation:
Hydrogen peroxide in water and adding kool- aid powder to water so the liquid turns red
Q14: Our sun
Q15: The strong magnetic reaction in our atmosphere
