1. Red: even without knowing much, just by realizing that red is one of the extremes (think rainbow), we can assume that it is the longest. Also, infrared waves' wavelengths are longer than that of visible light.
2. Electromagnetic radiation: the fact that they have "ray" in the names shows that they are radiation. It's not ultraviolet because that is part of electromagnetic radiation.
3. Photon
Answer:
Dominant
Explanation:
The offspring was Pp, since they were all purple, it means purple is dominant to white.
I think your best choice would be D. electron microscope. Hope this helps! ^_^
