Of the following, is the largest mass. of the following, is the largest mass. 2.5 × 10-2 mg 2.5 × 1015 pg 25 kg 2.5 × 1010 ng 2.5 × 109 fg

25kg is the largest mass

Explanation:

Convert all the masses to kg so that the units would be uniform

1mg = 10^-6kg

2.5×10^-2mg = 2.5×10^-2×10^-6 = 2.5×10^-8kg

1pg = 10^-15kg

2.5×10^15pg = 2.5×10^15×10^-15 = 2.5kg

1ng = 10^-12kg

2.5×10^10ng = 2.5×10^10×10^-12 = 0.025kg

1fg = 10^-18kg

2.5×10^9fg = 2.5×10^9×10^-18 = 2.5×10^-9kg

d. air pressure decreases as altitude increases.

overcharge is the right answer system