The greenland ice sheet contains 2,850,000 cubic kilometers of ice. it is melting at a rate of .006% per year. how many cubic kilometers are lost each year?

  171 km³ per year. 

{ Note:  This is the answer for which you seek.  However, this is the "amount" lost in the first year.  For the second year, you would calculate 0.006% of
  "171 km³ " to find out how the amount of ice lost in the second year.}.

Explanation:


0.006% = 0.006/ 100 = 0.00006 ;

0.00006 * 2,850,000 km³ = 171 km³  per year.

The answer would be d i think but i’m for sure it is not a and c