Answer:
6 and 6
Explanation:
All elements have an equal number of protons and neutrons
Science can be used to address societal issues and to inform policies.
Hope this was helpful :)
Answer:
Explanation:
It is called a double circulatory system because blood passes through the heart twice per circuit. The right pump sends deoxygenated blood to the lungs where it becomes oxygenated and returns back to the heart. The left pump sends the newly oxygenated blood around the body.
