The wheel, plow, and writing (a system which we call cuneiform) are examples of their achievements. The farmers in Sumer created levees to hold back the floods from their fields and cut canals to channel river water to the fields. The use of levees and canals is called irrigation, another Sumerian invention.
The last one, the lovers find it hard to determine whether they are asleep or awake.
Answer:
all your answers are correct.
Explanation:
I took the test
Answer:
Presence of inorganic molecules
Explanation:
This prediction is often debated as a part of origins of life.
Inorganic molecules do not contain carbon and cannot be considered as biological organism. One theory predicted that before the first life form exist, early atmosphere is covered in inorganic molecules. Over time, the interaction with inorganic molecules and lightning might cause a reaction that resulted in the formation of building blocks amino acids and nucleotide, which eventually evolved into living organism.
