Answer:
Land is the least effective because most disasters that occur are caused by either air or water...air pollution or flood.
Answer:
the earth surface is constantly changing from force in nature the daily process of precipitation wind and land moments result in changes to landforms over a long period of time driving forces into rows and volcanoes and earthquakes people also contribute to changes in the appearance of land
They do not work together
Answer:Resources such as rocks, soil, water, and air, nonliving things that help to meet our needs. This lesson focuses on students learning about Earth's Resources. They learn that water and air are renewable resources that can be replaced quickly. They learn that soil and rocks are non-renewable and they cannot be replaced quickly.
Explanation:
So, first of all let me explain the process of hydration to you.
The water causes the hardening of concrete through a process called hydration. Hydration is a chemical reaction in which the major compounds in cement form chemical bonds with water molecules and become hydrates or hydration products.
Considering this information, the answer is D.