A. Cosmology
Cosmology means the study of the cosmos, cosmo- means of or relating to the universe, therefore cosmology means the study of the universe. So it is the correct answer.
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.
Ocean floor subducts under continents because the ocean floor is softer and the crust in here is with lesser density and thickness, while the continents are harder because their crust is thicker and has bigger density. So when they collide, the softer ocean floor is pushed downwards by the harder continental crust.
Answer:
It is not enough space to answer all of this :/ if u can like give me more space i can answer this for you :D
Explanation:
