Water is a slow conductor of heat, thus it needs to gain more energy than the sand or dry land in order for its temperature to increase. On the other hand, soil loses its heat much faster. ... Additionally the oceans retain heat longer.
Source: ucmp.berkeley.edu
It breaks down lactose into the galactose and glucose. So the answer here is C.
For an atom to become a positively charged ion it must lose negatively charged electrons.
