Q1 This question is about atoms, molecules and nanoparticles.
(a)
Different atoms have different numbers of sub-atomic particles.
(0)
16
An oxygen atom can be represented as 80
Explain why the mass number of this atom is 16.
You should refer to the numbers of sub-atomic particles in the nucleus of the atom.

2. you__turn left on a red light if you are in the left-most lane of a one-way street, you're turning into the left-most lane of a one-way street, and no nearby sign prohibits the turn.

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?

Need what is special about water as a compound? how does water regulate climate? what drives water evaporation?   why is the water vapor fresh water when it rises from the ocean? why might freshwater in the form of snow take longer to enter the water cycle again than liquid precipitation?   what is an aquifer? what role do people play in the water cycle? plz just answer as many as you can ! thx if you !