20 points and ! fill in the blank. water falls to the lithosphere and hydrosphere. no answer choices.

Which feature do highland climates have that lower elevation areas do not?

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?

Ineed ! i have no clue how to do this problem.