Answer:
Sumer was responsible for many inventions and important contributions to inventions of both the time and today. However, Sumerian city-states often fought with each other. They went to war for glory and more territory. This power - hungry people build walls to protect from invading armies looking to loot, pillage, and grow wealthy. The walls surrounded each city - state, closing them off from the rest of Mesopotamia. This lead to isolation, and more war. The city - states were constantly in a state of unrest.
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The United Nations (UN) was created at the end of World War II as an international peacekeeping organization and a forum for resolving conflicts between nations.
The correct answer is C) increases.
<em>A catalytic combuster always increases the efficiency of a fireplace.
</em>
A catalytic combustor uses a ceramic honeycomb design of oval shape. It is coated with some noble metal to resist the heat. The smoke can be burned with this application. A catalytic combustor can increase the efficiency by 10% and the air pollution is reduced up to 75%, That is why a catalytic combuster always increases the efficiency of a fireplace.
The other options of the question were a) decreases and b) has no effect.
Sumerian art such as marble statuettes, sculptures and the Harp of Queen Puabi that were excavated in modern times, help us to better understand the life and culture of this people.
The Sumerians were an ancient civilization that inhabited the Mesopotamian region to 4,000 BC. They were an intelligent people, who organized themselves socially and politically through grain agriculture and trade.
They were organized into city-states and their religion was polytheistic. They were also the first people to use a type of cuneiform script throughout epic-religious literature.
They also developed several developments in science, such as a complex mathematical system and astronomy through heliocentrism vision.
They stand out for their contributions and inventions, such as the creation of the 12-month calendar used today, the clock, the wheel and the domestication of plants and animals.
In the arts, they also had great prominence, in the creation of music, of architectural and artistic works made in stone that portrayed gods, civil power and female figures.
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A refuge is considered a safe place for people in time of crisis and war.Refugees come from Caribbean countries to other countries such as America and Canada. These refugees come from the Caribbean countries of Cuba, Colombia, Haiti, Nicaragua, and El Salvador.
