How does the type of medium affect a sound wave?

Sound and water waves are mechanical waves so they require a medium to travel through. The medium may be a solid, a liquid, or a gas, and the speed of the wave depends on the material properties of the medium through which it is traveling.

i believe your answer is d mgf2

32: from largest to smallest, this hierarchy includes eons, eras, periods, epochs, and ages.

33: answer is c

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