Answer:
D
Explanation:
I don't really understand but Hope's this helps
Sound is a wave and will have different frequencies when the wavelength changes. When the wavelength changes the amplitude will rise or fall creating different pitch.
Explanation:
thats all that I could find I hope it helps a little bit :)
Answer:
The water carried the pieces of paper to the sides of the container.
Explanation:
The convection model shows how Earth’s mantle moves Earth’s plates. It also describes how hot rock flows in the Earth's deep interior in order understand fully how this particular flow shapes the surface of the Earth.
The convection model talks about how the temperature of the solid due to an external field such as fluid buoyancy can induce a fluid motion. This explains why water carried the pieces of paper to the sides of the container.
That would be d) environment .
