The answer is Condensing or condensation.
Answer is B.
Explanation:
A physical change is one in which there is no change in chemical composition of a substance. while a process in which there is change in chemical composition it is called a chemical change.
Answer:
The water cycle is driven primarily by the energy from the sun.
I believe the answer would be A. Electronegativity increases across a period.
Carbon oxides (monoxide, dioxide) are gases :)