1. the digestive system breaks down food and take the nutrients your body needs
The transfers of most cells require water and if the body dosent have enough it will shut down
Point source pollution is a single, identifiable location of a pollution like a drainage or a pipe. On the other hand non-point source pollution refer to wastes that are disposed at a wide area and cannot be easily determined where the sources are. The answer for this is false. It is the non-point source pollution that is difficult to track and to control.
Answer:
14amu
Explanation:
Given subatomic particles:
Number of protons = 7
Number of Neutrons = 7
Number of electrons = 7
Unknown:
Atomic mass unit; amu of nitrogen
Solution:
The atomic mass unit of a substance is the number of protons and neutrons in such an atom;
Atomic mass unit = number of protons + number of neutrons
This is because the mass of an atom is concentrated in the nucleus;
For the given specie;
Atomic mass unit = 7 + 7 = 14amu
