Which power is shared by the Senate and the House of Representatives?

The power shared by the Senate and the House of Representatives is the authority to make laws.

Explanation:

The absolute authority to make and approve laws are the most significant power granted by the constitution specifically to the Congress. A law proposed or a new bill introduced becomes a law only after the approval of both the Representatives' House and the Senate in the same form.

Section 8 of Article-I list the powers of the two houses to be shared with other powers. The more prestigious body is always a Senate as there are only a few senators than representatives and also because the Constitution provides them unique powers.

Answer: A proposed law only becomes a law after both the House of Representatives and the Senate have approved it in the same form.

Explanation: The power that is shared by the Senate and the House of representatives is the power to approve laws.