1.

What is a fertilizer ? Name any two fertilizers. State two harmful effects caused by the excessive use of fertilizers.

Answer»

Fertilisers are chemical substances which are rich in a particular nutrient. Some examples of fertilizers are urea, potash, NPK (nitrogen, phosphorus, potassium), etc. 

Harmful effects caused by the excessive use of fertilizers are-

1. Excessive use of fertilizers makes the soil less fertile. 

2. Excessive use of fertilizers causes water pollution.



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