Please help, add description of how you know the answer too please, if you don't mind. Thanks!

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.

What are similarities and differences between refraction, reflection, diffraction and absorption?