Explain the Doppler effect in layman’s terms

Doppler Effect refers to the change in wave frequency during the relative motion between a wave source and its observer

Explanation:

Like when a sound object moves towards you, the frequency of the sound waves increases, leading to a higher pitch.

answer: i'm not sure which is which for i get confused on it all the time but i can tell you that the answer lies with the convex and concave devices. i hope this you. have a good day and best of luck to you!

explanation:

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods