What is the likely long-term consequence of an increase in the relative percent of greenhouse gases in earth’s atmosphere?
a. earth’s average temperature will increase.
b. earth’s average temperature will decrease.
c. earth will experience greater temperature extremes.
d. earth’s average temperature will be unaffected.

An electron is trapped at a defect in a crystal. the defect may be modeled as a one-dimensional, rigid-walled box of width 1.00 nm. (a) sketch the wavefunctions and probability densities for the n 1 and n 2 states. (b) for the n 1 state, nd the probability of nding the electron between x1 0.15 nm and x2 0.35 nm, where x 0 is the left side of the box. (c) repeat (b) for the n 2 state. (d) calculate the energies in electron volts of the n 1 and n 2 states