13. Which shows the order of increasing ionization energy? a. Si, Al, Mg, Na
b. Ga, Ge, As, Se
c. Be, Mg, Ca, Sr
d. F, Cl, Br, I

Which process is involved in growing crops? irrigation transportation recreation condensation

What is the difference between bacterial infections and viral infections?

World class speed skaters can skate a 3,000-m course in about 4 minutes. what is their average speed for this course. a. 12.5m/s b. 1.33m/s c. 13.3m/s d. 1.25m/s