Porous rock reservoirs of water are called
a) aquifers.
b) shales.
c) swamps.
d) wetlands.

Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.

Explain why you think this diagram shows what happened to the carbon in the biodome.