The water cycle or hydrologic cycle is the continuous movement of water between the earth's surface and the air. Water molecules move from the atmosphere (or air) to the earth's surface and back again. Water moves from the atmosphere to the earth's surface via rain, snow, sleet or hail. It moves back to the atmosphere via evaporation. The sun's energy is the catalyst for the movement of water between the atmosphere and the earth's surface.
Much pollution fills the air because of train s which let off steam that contains chemicals.
<span>The extra water vapor begins to condense out of the air parcel the form of liquid water droplets and a cloud is formed .Another way mountains cause cloud formation is when air rises because the mountain is warmer than the surrounding air and causes the air to rise.</span>
Aegean Sea, the Black Sea, the Caspian Sea and the Ural River
All water boundaries
My geography teacher was telling us as well it is known as the Eurasian boundary as well