Science
"Excessive use of chemicals and pesticides in agriculture adversely effect the environment." Justify this statement.
Answer
Excessive use of chemicals and pesticides in agriculture harms the environment in several ways :
- These substances not only kill harmful pests but also destroy useful soil organisms that maintain soil fertility.
- The chemical residues often seep into the soil and mix with groundwater, polluting water sources and affecting aquatic life.
- Many of these chemicals are non-biodegradable and enter the food chain, where they get magnified at higher trophic levels (biomagnification), causing serious health problems in animals and humans.
- Prolonged use of such chemicals degrades soil quality and disturbs the ecological balance of the ecosystem.
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