Correct Answer - Option 4 : All of the above
Explanation:
Pollution refers to the contamination of the body which results in being harmful to lives and/or ecosystems when exposed into the environment.
Soil pollution:
Soil pollution is caused due to industrial activity (electronic waste disposal), agricultural activities (use of pesticides, insecticides, fertilizers, etc on the farmland), waste disposal (seepage of leachate from the waste landfills), accidental oil spills, acid rain, etc.
Causes of Soil Pollution: Some of the causes are the follows:
- Deforestation and soil erosion.
- Dumping of large quantities of solid waste.
- Pollution due to urbanisation.
- Imbalance in the flora & fauna of the soil.
- Loss of the natural nutrients of the soil.
- Indiscriminate use of fertilizers, pesticides, insecticides.
Sources of Soil Pollution:
- Acid rain.
- Pesticides.
- Radioactive wastes.
- Industrial wastes.
-
Pesticides and chemical fertilizer.
- Effluent and sewage.
- Materials like asphalt, leather, cans, plastics, glass, paper & dead bodies.
Measures to control soil pollution:
- Recycling of plastics wastes.
- Ban of Deforestation.
- Encouraging social forestry.
- Ban on the usage of plastics below 20 microns.
- Encouraging the plantation programme.
Hence the correct option is all of the above.
