Science HELP!!!!

Which waves have the longest wavelength and the lowest energy on the electromagnetic spectrum?
1. X-rays
2. infrared
3. radio waves
4. gamma rays

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  1. What do you think it is?

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  2. 3. radio waves

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  3. It's radio waves. I just found it in my book. It was hidden from my eyes. But thanks Anna and Elena! :) :D

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  4. Well, you're the one that found out the answer! but yes, the answer is "Radio waves" :)

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  5. Gamma rays

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  6. The answers

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  7. radio waves is correct I checked on nasa's electromagnetic spectrum

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