Geography, 19.11.2019 00:31 jb7692

Explain why geology affects the rate of coastal erosion.

hi, can yall give me some bullet points for this, i need to do revision for other subjects.

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Answer from: ellettm

Below are some bullet points describing some of the many influences of geology on coastal erosion.

Explanation:

Harder more erosion-resistant rocks will slow the rate of erosion while weaker and more erodible rocks facing the sea will speed up the rate of erosion. Erosion is greater on those continental margins along subduction zones and tectonic plate borders because the continental shelf is almost non-existent. Erosion is lesser on coasts located in the middle of tectonic plates because of the presence of an extensive continental shelf with reduces wave height and lowers the erosion rate. The presence of loose material and debris on beaches can create an important obstacle to wave action that minimizes and dramatically slows erosion of a beach or coast.

Answer from: Quest

hello!

let's go through all of these words' definitions.

u-shaped valley - where the valley curves down like a u shape

corrie - similar to the hole created at the top of a volcano when it erupts, it's almost like a dent in a mountain

pyramidal peak - a mountain where the peak is very sharp, such as the matterhorn.

arete - two valleys separated by a thin mountain range

i'm going to assume you know how to read a topographic map, but in case you don't, feel free to comment.

now, let's figure out which one's which:

a - seems to be a mountain range separating two valleys, with a mountain running from top center to bottom center and two valleys on either side. therefore, i'd consider this an arete.

b - it looks like a dent into the mountain, like what a corrie is.

c - looks to be a valley, with two steeper sides curving up around the bottom of the valley which has a river in it. i would consider this an u-shaped valley.

hope this !

Match the letters with the correct terms

Answer from: Quest

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years

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Explain why geology affects the rate of coastal erosion.

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