Which of these energy resources is both renewable and sustainable?

A. Coal
B. Biofuel
C. Solar
D. Oil

Whay is the following best defines climate

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.

Explain how scientists use geologic time to determine the age of landforms.