Convection currents in the mantle
No. The Doppler effect is about a change of frequency, not about a change of speed. The relative speed may change as well, but that's not what the Doppler effect is about.
No, the doppler effect applies to changes in frequency.
That would be the Doppler Effect.
The answer would be air. The other mediums have higher indices of refraction.
Velocity is a vector quantity, i.e. it consists of two measures, one is speed, the other is direction. If the speed remains constant then a change in direction would alter the velocity. (you didn't list any examples)
convection currents in the mantle.
Stop using fossil fuels.
greatest slope
in which of the following situations would a police officer exercise the greatest amount of discretion?
water reabsorption
yes
Rainfall. : ) Hope it helps.
the thickness of the crust
Environmental temperature change would effect everything from crop growth to hibernation. It would effect me as a homo sapien greatly as all of my crops would be dying - leaving me to starve - and the temperatures that I have adapted to would no longer be the ones I would be subjected to. This could potentially be lethal. Of course, the effects of environmental temperature change would vary depending on the scale of the change.
An increase in oil drilling would increase the risk of pollution.
which of the following abyssal plain, continental slope and continental shelf has the area that would be under the greatest amount of pressure?
No. The Doppler effect is about a change of frequency, not about a change of speed. The relative speed may change as well, but that's not what the Doppler effect is about.