The correct answer is :
From the cross section of the Grand Canyon, present is the Uplift, erosion deposition and tilting of the Precambrian sedimentary and igneous rocks.
The Precambrian metamorphic rocks and granite are the oldest rocks or structures.
Answer:
A. absorbs wave energy and can slow the undercutting of coastal cliffs
Explanation:
- A rip rap is known as a rock armor is a man placed rocks that are used as a shield to protect the shorelines streambeds and bridges and other structures against the water, waves and ice erosion and the most common type includes the granites and concrete.
- Mostly is used as a method of protection form erosion and keeps the coastlines clean and clear form the impacts can be also used to connect of joining the water highways along the coasts.
Answer:
we know that sum of all angles of triangle is 180
let angles be 5x , 6x , 7x
now sum of angles : 5x + 6x + 7x = 18x = 180
therefore we got x : 10
therefore angles : 50 , 60 , 70
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