Which statement correctly compares the thermosphere and the mesosphere? * 10 points
a. The mesosphere contains gases that absorb heat and is less dense than the thermosphere.
b. The thermosphere contains gases that absorb heat and is less dense than the mesosphere.
c. The mesosphere contains gases that are stable and is less dense than the thermosphere
d. The thermosphere contains gases that do not absorb heat and that is why it is so cold like the mesosphere.

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion.what is the frequency f of oscillation?