As water vapor rises in the atmosphere, it cools and changes into liquid cloud droplets in a process called condensation
The answer to the first question is (C). The lithosphere includes the crust and the cooler upper part of the upper mantle. It averages about 50 miles in thickness, give or take ten miles.
The answer to the second question is (D), the innder core is solid because of immense pressure.
They can BE used as Treatments ,they can be used for Natural Gas, and they can be used in Oil
Hope It helped :D