Water


Water is the crucial substance  for life on earth. It is a transparent, tasteless, odorless and nearly colorless chemical substance. Water exists on earth as a solid, a liquid and a gas. Earth's water unevenly distributed, with 97% being salt water in oceans and seas. only 3% being fresh water. Approximately 68.7% of fresh water is locked up in glaciers and ice caps. Around 31.1% of freshwater is stored underground in aquifers. A small percentage is found in lakes, rivers and swamps. Water are importance for drinking, washing, transportation, chemical users, flier considerations, food processing, medical use... etc.  




Human activities like industrial discharge, agriculture run off, sewage and improper waste disposal are major contributors to water pollution. 

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