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प्रश्न
State the causes of ‘eutrophication’.
What is the reason of eutrophication?
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उत्तर
Eutrophication is caused by a sudden influx of phosphorus into water bodies. This is caused by agricultural runoff or industrial effluents with high phosphate content.
संबंधित प्रश्न
Give balanced chemical equation for the reaction of water with Iron .
Give one word for the following statement:
The harmful substances dissolved in water .
Answer the following question.
Suggest three ways to conserve water.
Name a ‘pure form’ and an,‘impure form’ of water in the natural state.
Fill in the blank:
The sample of hard water which lathers with soap after boiling and filtration contains _____.
Explain the following observation:
Washing-soda become coated with a white powder when left exposed to the atmosphere.
True or false? Correct the wrong statement.
We get rainwater throughout the year.
Water changes to ice at ______.
From where do the following usually get water? In which form is water present in them?
Aquifer
Complete the following chart by writing appropriate words in the boxes marked (a) to (e).
