Zinc oxide protect the lifeguards from damaging uv sunlight. how does this cream protect from the uv rays of the sun? a. the cream is opaque and allows the uv rays to pass through your skin safely. b. the cream is opaque and reflects the uv rays before they reach the skin's surface. c. the cream is transparent and transmits the uv rays as they reach the skin's surface. d. the cream is transparent and absorbs the uv rays after they reach the skin's surface.

Slab pull” is a type of tectonic plate movement that occurs due to the forces of mantle convection and results in the subduction of the lithosphere true or false

What organization and environment is described above?

People with normal vision cannot focus their eyes underwater if they aren't wearing a face mask or goggles and there is water in contact with their eyes. in a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina.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 2.05cm in front of the eye.)