It was that "Flat land with poor drainage led to salinization from irrigation waters," that was a factor in the decline of Sumer, since this led to a build up of salt in the soil, which greatly reduced agricultural output.
When Thomas Paine wrote about reconcillation, he is referring to the colonies staying peacefully connected with Great Britain. This is in his writing or book, "Common Sense".
The answer or the missing phrase in your sentence is the second statement or choice.
Answer: Supreme Court Justice Earl Warren delivered the unanimous ruling in the landmark civil rights case Brown v. Board of Education of Topeka, Kansas. State-sanctioned segregation of public schools was a violation of the 14th Amendment and was therefore unconstitutional.
Answer:
Michio Kaku established the nineteenth and twentieth centuries as an "Age of Discovery" in "Choreographers of Matter, Life, and Intelligence
d) by listing the significant scientific developments of the era.
Explanation:
According to Michio Kaku during the XIX and XX century the humans have discovered the most uses for advance technology and these discoveries act as the base for future developments of the civilization.
He believes that in the year 2100 the humans will be able to move objects with the mind and the computers would read minds.
The answer is b and that’s the low pressure area
