Why is excess use of fertilizers detrime | Class 9 Science Chapter Improvement in Food Resources, Improvement in Food Resources NCERT Solutions

Question:

Why is excess use of fertilizers detrimental for environment?

Answer:

Unduly high concentration or intake of elements and nutrients can have adverse effects on plant growth. Also few elements, especially heavy metals have a tendency to bioaccumulate. The plants can become a source of excess heavy metal intake in human beings. Meeting the growing need for food is a challenge. For this, agricultural land per unit area is required to achieve maximum efficiency. Use of fertilizers and nutrients is one way to supply this. The presence of heavy metals affects the plant growth. Excess use of fertilizers may lead to heavy metal accumulation, eutrophication and accumulation of phosphate and nitrate. Excessive phosphorus is a potential threat to water quality. Policies and rules for encouraging effective and environment friendly use of fertilizers and its supply can improve the soil quality and prevent the adverse effects on human beings.


Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

  • Read the question carefully and focus on the core concept being asked.
  • Reference examples and data from the chapter when answering questions about Improvement in Food Resources.
  • Review previous year question papers to get an idea of how such questions may be framed in exams.
  • Practice answering questions within the time limit to improve your speed and accuracy.
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Welcome to the NCERT Solutions for Class 9 Science - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 23: Why is excess use of fertilizers detrimental for environment?....