By Sublimation, you can separate salt water from sand !!
and by Evaporation, salt can be separated from water !!
so all three are separated by these two process !!
Answer:
After the collapse of the Soviet Union in 1991,Eastern Europe began to transition toward Western European ideals. Eastern Europe has been shifting toward democratic governments, open market economies, private ownership, and the EU rather than the old Soviet Union.
Tropical climates are characterized by monthly average temperatures of 18 °C (64.4 °F) or higher year-round and feature hot temperatures. Annual precipitation is often abundant in tropical climates, and shows a seasonal rhythm to varying degrees.
Area. Around the equator, from 23.5° further north to 23.5° southern latitude.
Sun path. Sun at the zenith (90°) at least once per year, never lower than 43°
Average temperature. >20 to 30°C.
Minimal temperature. 0°C (no frost)
Maximal temperature. Up to 40°C (seldom more)