Conservation, the act of protecting Earth's natural resources for current and future generations
Answer:
atomic number
Explanation:
the number of protons tell us the atomic number
Answer:b. microsystem.
Explanation:
The microsystem is one of the component of ecological system theory. The microsystem describes the system, which is close proximity to the person. For example, the interaction of child with the school teachers, classmates, friends, parents and siblings. The person learns a lot through the direct interaction with people. This is like to influence the physical and behavioral outcomes.
The Redco company is just like a part of microsystem for the school children where they can learn directly by learning skills for manufacturing.
Coronary arteries supply blood to the heart muscle. Like all other tissues in the body, the heart muscle needs oxygen-rich blood to function. Also, oxygen-depleted blood must be carried away.