What instrument, along with a telescope, allows study of the wavelengths of visible light coming from a star?

a. a shortwave radio set

b. a nuclear reactor

c. a solar flare

d. a spectrograph

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

The answer is b because c don't explain why the moths are on them and it isn't a because as we know only one species of moth does this