The question above wants to assess your ability to simplify concepts. For that reason, it's not right for me to simplify these concepts for you, but I'll show you how to do it.
First, it is necessary for you to research these two topics, to understand their meaning and the main points that make them up.
You can do this research in textbooks, aimed at high school and middle school, as they usually present scientific concepts more clearly.
After that you can explain these topics as follows:
More information:
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