Answer:
9. Electron Affinity
10. The second option....
250miles is distance
5hours is time
Speed = distance/time
Speed = 250/5
Speed =50miles per hour
50mph
Hope that helps :)
the correct combo is C
We know sunlight is key factor in photosynthesis so A and D are out.
we also know plants get their bulk by breaking up co2 and using the carbon which releases oxygen as a byproduct so B is also out of the question.
Lithium has the lowest. if fluorine is the highest then lithium is the lowest. i hope this helps you out!