Explain the conditions in which a person can or can’t hear an echo

“when two plates carrying continents collide, the continental crust buckles and rocks pile up, creating towering mountain ranges. when an ocean plate collides with another ocean plate or with a plate carrying continents, one plate will bend and slide under the other. this process is called subduction. “ i found this on google i hope it

Protons have a positive charge and, collectively, give an element its atomic number.

Awoodchuck would chuck all the wood he could chuck if a woodchuck could chuck wood.