<span>Water on Mars exists today almost entirely as ice, though it also exists in small quantities as vapor in the atmosphere and occasionally as low-volume liquid brines in shallow Martian soil. The only place where water ice is visible at the surface is at the north polar ice cap.</span>
The Correct choice is : C. <u>Solids</u>
Sound waves need a medium to propagate, and the most suitable medium for that is solids, where it travel the fastest or with greatest efficiency.
Answer:
Utah
Explanation:
All the rest of the cities have plenty of nuclear power except for Utah.
True. Smog is fog combined with other pollutants like smoke than can be from automobiles or cars.
Hope this helps.
