5.7 x 10^4 = 57 000m
There are 1000m in a kilometer. This means that by dividing 57 000m by 1000m, we can convert m to km.
57 000m/1000m = 57km
Answer:
the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Explanation:
The best answer would be A.