UV rays can be found In the sun and in tanning beds.
UV rays can cause cancer (skin) if proper skin health is not happening (sunscreen)
I hope this helps you!
You can make 10 because that is the most N2 you have. The first one that runs out limits further molecules to be made
Number 1: (A.)
Number 2: (A.)
Number 3: (B.)
I'm probably wrong but that is what i think