Answer:
decreasing
Explanation:
Because the density in population umber is from baba.com
Answer: They has a larger navy
Hope this answer helps!
Answer:
Indus river (India): Harappa And the city of Mohenjo-daro
Nile river (Egypt): Ancient egyptian pryramid structures, obelisks, System of mathmatics, Medicine development, etc.
Huang he (China): The great wall of china build, development of budda religion, growing rice products.
Tigris-Euphrates (Mesopotamia): The wheel, plow tool, and cut canals and river connections.
The correct answer is: 3 trillion dollars