Topsoil is the most fertile soil layer for plants.
Answer:
A. the digestive, muscular, and respiratory
Explanation:
Muscle weakness affects the muscular system (muscles are in the muscular system) , stomach pain affects the digestive system (stomach is a part of the digestive system), and coughing affects the respiratory system (coughing hinders the ability to breathe properly).
Answer:
Renewable resources can be replenished, such as water. Non-renewable resources are limited, like oil. A sustainable option is one that can be reused without affecting the environment.
Explanation:
