Answer:
15
Explanation:
Atomic mass refers to the sum of protons and neutrons in the nucleus of an atom. So protons are 7and neutrons 8. 7+8=15
Answer:
In a traditional open primary, voters may select one party's ballot and vote for that party's nomination. As in a closed primary, the highest voted candidate in each party then proceeds to the general election.
Explanation:
In about 3200 BC the two earliest civilizations develop in the region where the southwest Asia joins Northwest Africa. Great rivers are a crucial part of the story. the Sumerians settle in what is now southern Iraq, between the mouths of the Euphrates and the Tigris
B. New religious ideas focused on people’s ability to improve themselves and others