Define the terms and describe an example of both “Physical/Mechanical weathering” and “Chemical weathering”.

Here is the book reference
https://gotbooks.miracosta.edu/earth_science/index.html
Weekly powerpoint is also attached.
Week 8 Discussion Board Unit 3Compare and contrast the terms “Weathering” and “Erosion”. Give an example for a similarity and difference.Define the terms and describe an example of both “Physical/Mechanical weathering” and “Chemical weathering”Where in the United States are sinkholes most common? Why, describe the type of erosion taking place and the cause of the sinkholes.What is soil, define and describe examples? Describe why soils are different depending on locationHow is an alluvial fan formed? Describe its shape and appearanceDescribe the Bed Load and Suspended load of a river/stream of flowing water moves sediment and debrisDescribe the process of water “infiltration” and ground water storageDescribe the process of water “run-off” and the formation of young rivers and mature stream channels. What is different between Young Streams and Mature Stream channels in how they modify landscapes as they flow over them?Describe how an Oxbow Lake is formed in a mature stream channelDescribe 4 examples of how ground water may be polluted and the types of pollution affecting water supplies in the United StatesWhat kind of Sand Dunes form in deserts with high sand supply and high winds?Describe the flow of water in a glacier and how it differs from the flow of rivers and streams of liquid water in forming valleysWeek 8 Assignment Unit 3videos

Part 1 Disaster FundingImagine a disaster involving erosion or weathering of land has just occur at your location (Examples: Flood, mudslide, landslide, rock-slide, collapse of a hillside from rain). This disaster has occurred in the past due to weathering and it may occur again in the future if more erosion occurs. Federal money and resources will be going to repair and help the people affected to recover. Your task is to argue whether the federal funds and resources should be allocated and used to rebuild the location affected or relocate residents away from the potentially dangerous area. Use the textbook for details and examples as well as internet research. Use at least 2 outside sources cited (required) to defend your argument by using statistics and examples to support your position on the issue and support your argument for rebuilding or relocating.Part 2 DesertificationDefine the term Desertification, Research a city or country facing the issue and Describe the impact they face from desertification and Discuss methods for reducing the impact or solving the problem (either methods the place is trying out or methods you find through research that would help.Part 3 The future of GlaciersIn this part of the assignment your task is to research an active glacier and give its name and location. Describe how the rate its growing or reducing in size each year. Research an organization tracking or monitoring glaciers and use it as a source to discuss the global trend in glacier activity. Discuss what the future holds for glaciers, what regions will loose glacial ice first and what regions are loosing the most ice to melting each year?