B) land cools off much faster than water (creating a air region of high density above land and lower density above sea)
A. electron. The nucleus has protons and neutrons, quark is the particle which forms protons and neutrons.
1) you want to increase friction when it gets cold. If you're outside and it's really cold, you're going to rub your hands to warm them up, therefore friction is increasing
I'm not do sure about decreasing.
Answer: 6.02214076 atoms Ca
Explanation:
Ca is monoatomic, so atoms in 1 mol = avogadro number
