Answer:
When a bill is passed in identical form by both the Senate and the House, it is sent to the president for his signature. If the president signs the bill, it becomes a law. Laws are also known as Acts of Congress. Statute is another word that is used interchangeably with law.
1- Write rules to put laws into practice
2-Carry out the day-to-day activities of the Federal government
3- Manage and regulate certain tasks within the governments (I’m not sure)
Trials in criminal and civil cases are generally conducted the same way. After all the evidence has been presented and the judge has explained the law related.