Question

92. With cold wind keeping the surface at
-10°C, a layer of ice on a pond grows in
thickness from 20 mm to 21 mm in 10 min.
Later on with the surface at the same
temperature, it will grow from 40 mm to
42 mm in approximately (in min.)
1) 10 2)5 3) 20 4) 40​

Answer 1

Answer:

40

Explanation:

thisbis the correct answer beca