The incorrect statement regarding the use of large amounts of fertilizers and pesticides is (a) “They are eco-friendly”.
Explanation: While fertilizers and pesticides can initially boost crop yields, their excessive use is not considered environmentally friendly. They can lead to various negative consequences like soil degradation, water pollution, and the disruption of natural ecosystems, making them far from “eco-friendly”.
Why other options are correct:
(b) They turn the fields barren after some time:
Overuse of fertilizers can lead to a phenomenon called “nutrient burn,” where the soil becomes too concentrated with certain nutrients, which can actually harm plant growth and lead to barren fields.
(c) They adversely affect the useful component from the soil:
Fertilizers and pesticides can disrupt the delicate balance of nutrients in the soil, negatively impacting beneficial microorganisms and other organisms that are vital for soil health.
(d) They destroy the soil fertility:
Excessive use of fertilizers, especially synthetic ones, can lead to long-term damage to soil fertility by depleting essential nutrients and altering soil structure.