Describe the four types of cases that must be heard by a federal court. (site 1)

Cases that must be heard by a federal court include cases involving laws passed by Congress or interpretation of the Constitution. A case must be heard in a federal court if 1) the United States government is one of the parties; 2) there is a possible violation of the U.S. of the U.S. Constitution or federal law; 3) the opposing parties are residents of different states, and the amount of money involved is more than $75,000; or 4) the case involves bankruptcy, maritime law, copyrights, or patents.

Explanation:

the answer would be c. sediment buildup on continental slope

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