Silica Defined. Silica is another name for the chemical compound silicon dioxide. Each unit of silica includes one atom of silicon and two atoms of oxygen. If you have never heard of silica before, you might be surprised to hear that you probably come into contact with it every day.
The Fifth Circuit, for example, includes the states of Texas, Louisiana, and Mississippi. Cases from the district courts of those states are appealed to the United States Court of Appeals for the Fifth Circuit, which is headquartered in New Orleans, Louisiana.
The Missouri circuit courts hear cases that arise under Missouri law or the Missouri Constitution. The federal district courts hear cases that arise under federal law or the U.S. Constitution. The second levels are the appellate courts, which hear appeals from the trial courts. Both the state and federal systems have a Supreme Court, to serve as the âcourt of last resort.â