I got B but some of the numbers are blurry
Answer: Earth reinforcing
Explanation: Earth reinforcing is a method of strengthening the soil/ground when constructing foundation by combining materials such as steel or concrete to the soil. It is especially useful for the construction of conventional retaining walls or mining structures.
Historically, steel nets were used on areas with soft clay, such as sea beds. Some materials used now include Geonets and geogrids.
Answer:
Core samples and Tree rings
Explanation:
Very early societies did not have a written language or ways to efficienly preserve information over time
Answer:
A majority of the Atlantic Coastal plain is flat, there are no hills or mountains in this region of North America. It contains a lot of sedimentary rock and is primarily used in farming/agriculture. This area of land has good access to the sea. This area also features large embayments with drowned river valley's and many wetlands and marshes.
Hope this helps :)