Thermal desalination, an ancient method, (19) ______. Reverse osmosis uses pressure to push seawater through a membrane that filters out the salt.

A. whose water production includes seawater heating and vapor conversion

B. involves heating seawater to produce vapor and then condensing it into water

C. having involved two phases: seawater heating and water condensation

D. of which the process focuses on heating seawater and turning vapor into water

Ms Tra My_E12_Part 2_Đề tinh tuý 12