What was made the Mariana trench so deep?

The Mariana Trench is part of a global network of deep troughs that cut across the ocean floor. They form when two tectonic plates collide. At the collision point, one of the plates dives beneath the other into the Earth's mantle, creating an ocean trench.

Elicit student responses. Then explain to students that the Mariana Trench is the deepest part of the ocean and the deepest location on Earth. It is 11,034 meters (36,201 feet) deep, which is almost 7 miles. Tell students that if you placed Mount Everest at the bottom of the Mariana Trench, the peak would still be 2,133 meters (7,000 feet) below sea level.

Explanation:

nafta and the union are used as a trade between other countries these   organizations are used as spokes person for the country

the presidential debate between carter and reagan in 1980 was ranked among the highest ratings achieved by any television program in the previous decade (the 1970s). carter focused on portraying reagan as a "war hawk" and a "right-wing radical", which could be considered as comments with no factual evidence. however, reagan openly criticized medicare and social security benefits, stating the fact that national debt was approaching $ 1 trillion. these arguments, plus his closing remarks, in which he asked viewers to question themselves "if it is easier for them to buy things in the store or find employment than 4 years ago", were key to him win the election by a vast margin during that year.

e."