Why is the constitution a supreme law of the land?

since the constitution is the supreme law of the land those laws.cannot be valid and must be overturned. The constitution of the United States is the supreme law of the land meaning that no law can be legal if it contradicts what the constitution says. Hope this helps.

Explanation:

i can

explanation:

because its important to learn about other countries and how high tech they are compared to us. also its good to learn about other cultures and how ours differs and in common also we need to learn about companies that we still buy since they ship it here.