Is it possible to create more than one dichotomous key for classifying and indentifying the same group of object

Which of the following types of stars is most likely to end up as a supernova? in graph a, the curve peaks at 800 nm, in the red section of the visible light spectrum. in graph b, the curve peaks at 550 nm, in the green section of the visible light spectrum. in graph c, the curve peaks at 450 nm, in the blue section of the visible light spectrum. in graph d, the curve peaks at 300 nm, in the violet section of the visible light spectrum. a b c d

Approximately what wavelength of light is best absorbed by chlorophyll a

Development has provided electrically for less money but what may be considered a cause of nuclear power