A farmer applies large amounts of chemical fertilizers over several years. Which consequence most likely results from this practice leading to soil pollution?
Accumulation of toxic substances in soil
When chemical fertilisers are applied in excess over multiple years:
- Heavy metals (cadmium, arsenic from phosphate fertilisers) accumulate in soil.
- Nitrate leaching into groundwater causes eutrophication and health issues.
- Soil pH becomes imbalanced, harming beneficial microorganisms.
- Earthworm populations decline, reducing natural soil enrichment.
The most likely consequence is accumulation of toxic substances — making option 3 correct.
Faster plant growth (option 1) may occur initially but declines over time. Earthworm population actually decreases (option 2 is wrong). Surface erosion (option 4) is a separate issue.
Similar Questions
The primary method of managing biodegradable domestic waste after collection is _________________.
A field exposed to excessive pesticide use shows a sharp decline in earthworm population. The resulting effect on soil is:
Biomedical waste handlers in a hospital are at risk of occupational hazards. The most effective way to protect them from exposure to infectious materials is:
The term 'smog' is a combination of ____________.
The pollutant group commonly associated with oil spills in oceans is ______________.
The primary method of managing biodegradable domestic waste after collection is _________________.
A farmer applies large amounts of chemical fertilizers over several years. Which consequence most likely results from this practice leading to soil pollution?
The pollutant group commonly associated with oil spills in oceans is ______________.
The term 'smog' is a combination of ____________.
Biomedical waste handlers in a hospital are at risk of occupational hazards. The most effective way to protect them from exposure to infectious materials is:
Important Questions from Ecology and Environment
The Imperial Forest Research Institute was set up in 1906 in:
Buxa Tiger Reserve is located in:
Which day is celebrated as the World Environment Day?
Which Indian products are issued with eco - mark?
Degradation of global environment has not resulted in one of the following.
