Everything in Earth's<span> system can be placed into one of </span>four major<span> subsystems: land, water, living things, or air. These </span>four<span> subsystems are called "</span>spheres<span>." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air).</span>
How much degress are they
Answer:
Land is the least effective because most disasters that occur are caused by either air or water...air pollution or flood.
Answer:
The answer is A. The process of breaking down rock and soil.
Explanation:
An example of this will be the grand canyon because it use to be filled with water and all the water was wearing away the rock.