Answer:
The Colorado river through its course.
Explanation:
- The Colorado is one of the major river systems of the southwestern united states and northern Mexico and forms a 1,450 mile long. Starting on the central rocky mountain systems of the river flows to southwest plateau regions and is known for the dynamic canyons and the formation of the rapids can be seen by the horseshoe bend at the Arizona.
- Most of the upper parts of the river are white waters streams that have a depth of 60 feet.With areas of marshy valleys near the head water s and the grand valley that exhibits braided characteristics. In downstream the rover enters the marble canyons and passes under the Navajo Bridges on a southward course.
- The river swings to the west of the Granite Gorge, near the grande canyon were the rover cuts up to one mile in Colorado plateau and exposes some oldest rocks on earth and the lower ends widens to the lake mead to the hoover dam.
- A large estuary is formed before the Colorado River empties into the gulf, about 75 miles south of Yuma. Forma delta and flood plains that cover the 7800 km square northwest of Mexico.
The correct answer is - A) Permafrost used to be permanent.
The permafrost used to be permanent until recently, so using certain techniques of building on it functioned properly. But with the climate changes that are becoming more and more evident, the permafrost is no longer permanent, but instead, it is either defrosting in some part of year and then forming again, or has been totally absent from some regions in the present.
That has caused changes in the rules governing building on permafrost. The reason for the changes is that the old techniques do not work properly anymore, and the permafrost changes are making change in the landscape, making big damages on the infrastructure in meantime.
Answer: I think it's Angola.
The question is asking us to complete the following sentence: "The resources that are provided by Earth are known as _______ resources. These resources are for example oil, coal and wind power - they are provided by the Earth. We call those resources "natural" resources - the correct option is A. Natural resources can be both renewable (such as wind) and non-renewable, such as coild and oil (they take too long to be renewed so if we use them up, we won't have any more).
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