HELP PLEASE! What checks does the Constitution give Congress on the president's powers as chief diplomat and commander in chief? How effective are these checks?

The Constitution give Congress on the president's powers as chief diplomat and commander in chief is explained below in details.

Explanation:

As the country's foremost representative, the President is the main creator, architect, and designer of American international or external policy and the foremost spokesperson to the remainder of the world. The Constitution presents the President as the commander in chief, providing him or her absolute authority over the nation's armed forces.

the option which was not a function of missionaries in the northwest was the first one - they established posts for trading furs and other goods.

missionaries were sent around the world to spread religion and their knowledge and others - they were not merchants who sold furs and other goods.