What is the process called for reviewing and approving treaties and presidential appointments

I think It's called the Appointments Clause

Explanation:

The Appointments Clause is part of Article II, Section 2, Clause 2 of the United States Constitution, which empowers the President of the United States to nominate and, with the advice and consent (confirmation) of the United States Senate, appoint public officials.

answer; /// the correct answer is evidence of the olmec civilization has been found in southern american in a hot steamy forest, archaeologists have found earthen artifacts at several sites that were evidence of the olmec civilization. these   artifacts were mounds,courtyards and pyramids build of stones, also on top of the mounds were many monuments made of stone, some of these stone structures are very large, they weigh as much as 44