Indicators for air quality: Blackening of copper electric wiring; unusual coloring; cracking; withering signs on households or antique items made out of silver, copper, wood, leathers, etc.; gaseous smells; and moisture absorption by hygroscopic substances such as salt, sugars, cellulotic materials in and around surrounding areas are good
Indicators for water quality: Physico-chemical indicators are the traditional 'water quality' indicators that most people are familiar with. They include dissolved oxygen, pH, temperature, salinity and nutrients (nitrogen and phosphorus).
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Answer:
Indicators for air quality: Blackening of copper electric wiring; unusual coloring; cracking; withering signs on households or antique items made out of silver, copper, wood, leathers, etc.; gaseous smells; and moisture absorption by hygroscopic substances such as salt, sugars, cellulotic materials in and around surrounding areas are good
Indicators for water quality: Physico-chemical indicators are the traditional 'water quality' indicators that most people are familiar with. They include dissolved oxygen, pH, temperature, salinity and nutrients (nitrogen and phosphorus).
Explanation:
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