Compare and contrast an ocean trench to a mid-ocean range.

according to a geography site "ocean trenches and ridges. Trench: very deep, elongated cavity bordering a continent or an island arc; it forms when one tectonic plate slides beneath another. Ridge: underwater mountain range that criss-crosses the oceans and is formed by rising magma in a zone where two plates are moving apart."

Hope this helps

Don’t use up to much of them it leads to pollution

"pacesetter of the south," comma inside the quotes