Найдите герундий, в какой форме он употребляется:8) The only difference between

Найдите герундий, в какой форме он употребляется:
8) The only difference between waves transmitting heat radiation and radio waves is the difference in the wave length.
9) Instead of increasing the temperature of the ice, the energy, is used in decreasing the attraction between the molecules.
10) In the process of boiling heat is con-stantly added to the liquid.