17. Which is NOT true about oceanic and continental crust Oceanic crust is made up of younger rocks

Continental crust is thicker than oceanic crust

Continental crust is able to sink into the mantle

Oceanic crust is made of silica and magnesium

Asmall closed hole formed in an outwash plain or moraine. forms when a  glacier retreats then remains stationary. 

Evidence peice 1: millions of years ago existed the supercontinent pangea after millions of yearsnit broke into peices and formed smaller continents and islandsevidence peice 2: there is a massive fault line in san fransico and california that has the potential to cause massive earthquakes which supports the theory of fault linesevidence peice 3: mountains are said to be formed by earths tectonic plates crashing against each other for millions of years and eventually if forms a big point know as a mountain.evidence peice 4: the mariana trech is the deepest place (so far) discovered in the oceans of earth. it is so deep that you can literally see how earths plates are divided and or continents as well