Physico-chemical characteristics of water in water sources undergo changes due to
A. Aquatic macrophytes
B. Auatic fungi
C. Effluents
D. Evapotranspiration
Answer: Option C
Solution(By Examveda Team)
Aquatic macrophytes, aquatic fungi are natural organism and evapotranspiration is a natural process by which plant losses water. Thus being natural they do not results into any change in physico-chemical characteristics of water while effluents discharged into water bodies by industrial units and domestic sewage results in to change in physico-chemical characteristics like pH, conductivity, temperature, electrical conductivity, dissolved oxygen, biochemical oxygen demand, chemical oxygen demand, NH4+ and NO3- ion contents etc.Related Questions on Chemistry
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C. Dry farming
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E. Trade winds
The nucleus of an atom consists of
A. electrons and neutrons
B. electrons and protons
C. protons and neutrons
D. All of the above
The number of moles of solute present in 1 kg of a solvent is called its
A. molality
B. molarity
C. normality
D. formality
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