What is fertilizer?Name any two fertilizers state two harmful effects caused by the excessive use of fertilizers .
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Answer: Nitrogen and phosphorus
Explanation:Too much nitrogen and phosphorus in the water causes algae to grow faster than ecosystems can handle. Significant increases in algae harm water quality, food resources and habitats, and decrease the oxygen that fish and other aquatic life need to survive.
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Answer:
Fertilisers are inorganic substances prepared in factories which are rich in plant nutrients. Two harmful effects of fertilisers are:
• Excessive use of fertilisers makes the soil less fertile.
• They also cause water pollution and soil pollution.
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