Biotic are living organisms and abiotic are non living things such as rocks water soil
Answer: The Excretory system
Explanation: Because I said LoL
We know that density = mass /volume
so
mass=volume*density
volume=mass/density
so c is wrong
Answer:
Your answer will be b(molten material from the outer core makes its way to the surface of earth)
Explanation:
Mass number is the number of protons and neutrons in an atom, and it tells us about the mass of the atom in amu, or atomic mass units. Atomic mass is the average mass of all the isotopes of a certain type. It is a weighted average that takes into account the abundances of all of the different isotopes
hope this helps :)
