I just did this last semester... I know this is wave height!!
Answer:
Radiation is the emission or transmission of energy in the form of waves.
Explanation:
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Answer:
static electricity and then lightning rod
Answer: When quantities have the same relative size. In other words they have the same ratio corresponding in size or amount to something else.
Explanation: Example: "A rope's length and weight are in proportion."
Example: "The punishment should be proportional to the crime"