So they can breatheso they can breatheso they can breathe<span>so they can breathe
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Answer:
substrates
Explanation:
they tend to be the original reactant, and the newly formed material is the product
When sound waves hit a solid surface they either reflect, refract, or absorb.
Echo's are caused by the reflection of sound waves.
<span>B.) It is moving away from Earth.</span> When an objects moves far from the viewer, it's light is affected by a change called doppler effect or doppler shift.
