Electric field lines . Select all that are true. A. Cannot cross each other B. Should be smooth curves C. Should always end on negative charges or at infinity D. Flow from high potential to low potential

With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90

Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?

Provides most of the energy used in the world today. question 4 options: wind fossil fuel moving water sunlight