Ooh. I would have to say "A" as the question has the words "laws and enforce"
The collapse of the Indus Valley Civilizations can be attributed to the following factors. One, the trade networks declined and disappeared. This meant less work for traders and manufacturers. Two, changes in geography that caused the rivers to either dry up or change direction Three, the people abandoned the major cities. Four, without trade and access to water, people succumbed to disease and starvation.
Answer:
The Marshall Court established the legal authority of the Supreme Court over the states and other branches of the federal government.
Explanation:
