The area known as "mesopotamia" is found between the rivers
a) nile and congo.
b) danube and rhine.
c) yellow and yangtze.
d) tigris and euphrates.

Which of the layers of the earth has the following three characteristics? i. it is a solid outer layer. ii. it is between 3 and 30 miles thick. iii. it is separated into plates. a. the outer core b. the inner core c. the mantle d. the crust

Irelanda. populationb. square mileagec. average population density per square mile

Tides are caused by a differences in the gravitational force of the sun at different points on earth. differences in the gravitational force of the moon at different points on earth differences in earth’s gravitational field strength at different points on earth’s surfac fluctuations in the gravitational attraction between earth and the moon.