a); and c). During Chandragupta II reign, great impulse was given to arts and science. One of the main scholars of the time was Aryabhata, who came up with the concept of zero and discovered the ratio of pi. He also worked in demonstrating that the earth moves around the sun instead of otherwise.
Answer:
Population density is a measurement of population per unit area
What causes a river to change course?
Due to constant deposition of river sediments on the slower side and the vast amount of erosion that takes place on the faster side. This process keeps on continuing till the curves get sharpened, so that river cuts through the curve and forms another path and thus river changes its course.
Why are rivers and lakes important for North America?
It is because they provide freshwater for industrial, agricultural purpose, waterways and tourism. Explanation: River and lakes are abundant in North America and they are of great importance. It provides the water for both the industrial as well as agricultural purpose near and around the rivers and lakes.
What are the most important roles of rivers and lakes today?
Rivers carry water and nutrients to areas all around the earth. They play a very important part in the water cycle, acting as drainage channels for surface water. Rivers drain nearly 75% of the earth's land surface. Rivers provide excellent habitat and food for many of the earth's organisms.
Answer:George Washington
The Judiciary Act of 1789, officially titled "An Act to Establish the Judicial Courts of the United States," was signed into law by President George Washington on September 24, 1789. Article III of the Constitution established a Supreme Court, but left to Congress the authority to create lower federal courts as needed.
Explanation:
