Dr. Chang is studying seismic waves. He notices that seismic waves (a type known as P-waves) travel faster through the mantle than through the outer core. What can he conclude from this observation?
ОА.
The mantle is wider than the inner core.
ОВ.
The mantle is not as dense as the outer core.
OC.
The outer core is not as dense as the mantle.
OD.
The inner core is wider than the mantle.

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

homeostasis is the tendency towards a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes. and this is how it applies to the integumentary system. back to top. skin functions in homeostasis include protection, regulation of body temperature, sensory reception, water balance, synthesis of vitamins and hormones, and absorption of materials. when body temperature falls, the sweat glands constrict and sweat production decreases.

condenser is used to focus in the light microscope.