Question

How addition of undesirable substances and change in the temperature affect water life.

Answer 1

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Here's the answer :

• Addition of undesirable substance into water can change the physical , chemical and biological properties of water and leads to pollution.
• For example the fertilizers that are used in crops will enter the water bodies by irrigating the crops. When the fertilized crops are irrigated , the water flows to the nearby water body and causes pollution .
• aquatic organisms are used to certain range of temperature in the water body.if there is any sudden change in temperature, it would be dangerous for them.
• For example the eggs laid by the fishes in the water can adapt to only certain range of temperature. if the temperature of water is not suitable for them , they may die.

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Answer 2

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Explanation:

Addition of undesirable substance into water can change the physical , chemical and biological properties of water and leads to pollution.

For example the fertilizers that are used in crops will enter the water bodies by irrigating the crops. When the fertilized crops are irrigated , the water flows to the nearby water body and causes pollution .

aquatic organisms are used to certain range of temperature in the water body.if there is any sudden change in temperature, it would be dangerous for them.

For example the eggs laid by the fishes in the water can adapt to only certain range of temperature. if the temperature of water is not suitable for them , they may die.