Coronavirus??? I guessed sorry :/
The amount of water in the air is humidity .
Yes it is C and B because I did this before.
Answer:
The mass number of an isotope is the total number of protons and neutrons in an atomic nucleus. If you know that a nucleus has 6 protons and 6 neutrons, then its mass number is 12. If the nucleus has 6 protons and 7 neutrons, then its mass number is 13.
Explanation:
Answer:
Chemicals are used in the manufacturing of fertilizers
