Electromagnetic waves- through space and matter

What is the orange line on the graph and why is it important? describe the pattern of hurricanes reaching the usa since 1960

Which of these is most likely a characteristic of a non-radioactive daughter isotope after it is form from the parent isotope ? a. stable electrons b. stable nucleus c. positively charged atom d. negatively charged ion

Part a: in paragraph 2, you can infer from the phrase "..thegreat triumph in mathematics" that the lieutenant is: