Why did early civilization arise in the valleys of the Tigris and Euphrates Rivers?

How does the force of gravity affect tectonic plates?

The physical movement or pushing of food along the digestive tract

Why does Australia have two territories?

Why is the time period from 750 - 1300 CE referred to as the "Golden Age of Islam"?

The eccentricity of a perfect circle is zero. Which of these effects would be observed if the eccentricity of Earth's orbit around the Sun were to become zero? Earth would experience higher than average temperatures.

How many offers were made ro the palestinians to create their own átate

Where is mt. kilimanjaro?

The primary purpose of Bretton woods conference was to

What was the World Trade Organization decision in 2006 related to genetically modified crops? Individual countries had the right to determine if they were going to allow genetically modified crops to come into their country.

12 out of 50 seventh graders said they would be willing to pay between $21-$30 dollars for a class trip. If there are 350 students in seventh grade, about how many would go oh the trip if it cost $30?