First turn 18% to a decimal, which is .18, then multiply it by 450.
450 x .18 = 81
evaporation is when a mass of water is hit by sunlight and some of it turns to a vapor. In the atmosphere, that vapor cools and the water molecules fuse with other water molecules, forming clouds. (condensation) When the clouds become full, the water precipitates onto land or into the ocean in the form of rain, sleet, snow or hail (precipitation).
1. Destroying the ecosystems.
2. Destroying agricultural land and thus creating problems in food production.
3. Pollution of water.
4. Micro climate changes.
5. Pollution of air.
6. Sound pollution.
