Which problem can NOT be answered by experiment? A)Do ultraviolet rays cause skin cancer?

B)Does a certain drug kill the AIDS virus?

C)Which wavelength of light has the most energy?

D)Did continental drift cause the extinction of the megalodon?

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How are the reproductive cycles of a fungus and a pteridophyte similar? a)both organisms form fruiting bodies that produce diploid seeds. b)both organisms produce haploid spores and exhibit diploid and haploid stages. c)both organisms reproduce sexually when two haploid hyphae fuse. d)both organisms exhibit a diploid stage and are only able to reproduce asexually.

Suppose you could go back in time to interview henri becquerel on the day he discovered radioactivity. from his perspective, write an account of the discovery.