Double headed arrows indicate positive or negative effects of one variable on another
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:
Explanation:
The Earth's interior is divided into three major layers. These are the crust, mantle, and the core. The crust is hard and brittle and it extends from the surface of Earth all the way to the Moho. The moho is about 6miles below the seafloor or 22 miles under the surface of the continents. After the moho is the mantle and After the mantle is the core. The mantle is divided from the core by the Gutenberg discontinuity.