Answer:The same amount of matter exists before and after the change—none is created or destroyed. This concept is called the Law of Conservation of Mass. In a physical change, a substance's physical properties may change, but its chemical makeup does not.
Explanation:
I think it is c but I hope it can help.
The answer is <span>letter D</span>
Answer:
stars spend most of their lives on the main sequence fusing hydrogen gas to helium gas. stars eventually swell up to form a red giant star. stars like the Sun end their lives as planetary nebulae and white dwarfs.
Explanation:
Answer:
b
Explanation:
because because it's talking about the five kingdoms and b the correct answer