<span> sediment formed from the weathering and erosion of rock. Over time, sediment accumulates in oceans, lakes, and valleys, eventually building up in layers and weighing down the material underneath. This weight presses the sediment particles together, compacting them. Water passing through the spaces in between the particles helps to cement them together even more. This process of compacting and cementing sediment forms sedimentary rock</span>
yangtze river and the yellow river
Venezuela is the #1 producer of oil in South America.
Answer:
A. The Grand Canyon was formed by the continuous flow of the Columbia River.
Explanation:
The Columbia River and the Grand Canyon do not have any touching point, let alone that the Grand Canyon has been formed by the flow of this river. Columbia River is a big river, and it flows through the northwestern part of the country. It is very important for the people that live in this part of the Untied States because the river flows into the Pacific Ocean, and it is big enough so that boats can move through it and go further in the mainland, so economically it is a very important feature in the region.