'The use of fertillizers only increases air pollution." What is wrong with this statement.

V1t2 = v2t1 is an expression of who’s law

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

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?