For nutrient recovery and cycling
For releasing heavy metals through absorption by plants
In reducing siltiation of rivers by retaining sediments
All the above
Answer is Right!
Answer is Wrong!
The correct answer is (d). Wetlands are useful for all of the options listed.
Wetlands are areas of land that are saturated with water, either permanently or seasonally. They are important ecosystems that provide a variety of benefits, including:
- Nutrient recovery and cycling: Wetlands help to filter water and remove pollutants, including nutrients such as nitrogen and phosphorus. This helps to protect water quality and prevent the eutrophication of lakes and rivers.
- Reducing siltation of rivers by retaining sediments: Wetlands can help to reduce the amount of sediment that is carried away by rivers. This helps to protect riverbanks and prevent flooding.
- Releasing heavy metals through absorption by plants: Wetlands can help to remove heavy metals from the environment. Plants that grow in wetlands can absorb heavy metals from the soil and water, and these metals are then stored in the plant tissues. This helps to reduce the amount of heavy metals that are available to enter the food chain.
In addition to these benefits, wetlands also provide habitat for a variety of plants and animals. They are important for biodiversity conservation and can also be used for recreation and education.