The correct answer to this open question is the following.
Although the question is incomplete because you did not attach references to the lesson, we can say the following.
One Mesopotamian contribution that I think had the biggest impact on human history was the development of agriculture techniques and the knowledge to know about the flooding of the Tigris and Euphrates Rivers, so Sumerians could use it for growing crops and to avoid some catastrophes.
The Sumerians were the oldest civilization on planet Earth. They settled in the middle of the above-mentioned Rivers in the Middle East region, modern-day Iraq. They developed great knowledge to built impressive buildings called Ziggurats and formed important city-states such as Uruk, Kish, Ur, and Lagash. Agriculture techniques were a big reason they could settle in these regions.
B.
Speaker of the house is voted on by the House. The Senate has nothing to do with it. Campaign staff isn't controlled by anybody but the campaign manager (or theoretically the candidate), and definitely not the Senate. The Senate doesn't veto legislation, it votes on it. The Senate does, however, confirm the President's major appointments (Cabinet members and other secretaries).
I believe it’s B because I did my research
Neutralist, because neutralist is a person who pleads for a cause or propound an idea.
Answer:
Government. an institution with the powers to make and enforce rules for a group of people.
Explanation:
please mark me brainliest