Question

cause of soil pollution plz answer half page

class 10

plz guys anwer us correct because it my project work in biology​

Answer 1

Answer:

Causes of Soil Contamination

Soil pollution is mostly caused by mindless human activities such as:

Industrial waste

Industries are by far the worst polluters of the soil with all the chemicals they release into the environment be it in liquid or solid form.

Deforestation

Clearing of trees leaves soil exposed to the elements so they are easily carried away by soil erosion. This leaves land barren and incapable of supporting vegetation.

Excessive use of fertilisers and pesticides

The increased demand for food has forced farmers to use fertilisers and pesticides that release nothing but toxins into the soil, killing useful microorganisms that are important in plant growth.

Garbage pollution

Garbage that cannot be recycled is disposed of carelessly and this is not only an eyesore but pollutes the land. Some of this waste can literally take thousands of years to decompose!

Answer 2

Answer:

Soil or land pollution can be defined as the build-up in soils of persistent toxic chemical compounds, salts, radioactive materials, or even disease-causing agents, which adversely affects the growth of a plant and the health of animals.

Soil pollution is caused by both natural and anthropogenic activities. Former includes volcanic eruptions, earthquakes, tsunamis etc. while the later includes metals (trace and heavy metals), chemicals and radioactive wastes. The chemicals can be grouped into pesticides and allied chemicals, crude petroleum and its derivatives and polymers, plasticizers and other wastes. Radioactive wastes include nuclear power generation wastes and other by products released from nuclear technology (medicines and research). These are harmful substances which stay in the ecosystem for long duration during which they get accumulated and biomagnified to concentration potentially toxic to organisms at higher trophic levels in the food chain. Most of these chemicals are carcinogenic, teratogenic and mutagenic in nature.