Land-Pollution and Harmful Activities of humans

It's about the land pollution that's happening now and before.

1. Land pollution

2. Lesson objectives Define the conceptual terms soil, land and minerals; and I dentify activities that causes land pollution and their effect on the environment.

3. DEFINITION OF TERMS: Minerals are elements or compounds which are solid, inorganic, and naturally occurring. They are often combined with other substances. Appropriate amounts of nitrogen, phosphorus, and potassium are components of fertile soil.

4. DEFINITION OF TERMS: Prof. Ernesto Serote described the land as: a natural resource an economic good a property a territory

5. DEFINITION OF TERMS: Soil is the material that makes up the topmost part of the crust. The pedosphere is the thin outermost layer of the Earth made up of soil.

6. IMPORTANCE OF SOIL Many ecosystems depend largely on the soil. It provides the nutrients which are vital for plant growth. It also allows water, air, and energy to flow through it, providing other resources which are critical for the survival of species.

7. How do soils form? WEATHERING It is the breaking down or dissolving of rocks and minerals on Earth’s surface.

8. How do soils form? Soil is formed from accumulated sediments, weathered rocks, and decaying organic matter.

9. Soil can be characterized by its profile , texture , color , consistency , and acidity .

10. It is described according to its physical and chemical properties . Soil Horizons

11. Gritty – contains much sand Smooth – contains more silt Sticky – contains more clay Soil TEXTURE

12. 3 Kinds of Soil Sand particles – measures up to 2 mm Clay particles – particles are smaller than 0.002 mm Silt particles – particles measure between 0.05 to 0.002 mm

13. Loam contains a good proportion of these three soil types. Particles that are bigger than 2 mm are no longer considered as soil materials - classified as stone or gravel .

14. Soil color The kind of elements or minerals which are present in the soil gives its characteristic color .

15. Soil consistence The ease or difficulty of breaking the soil apart gives its consistency . l oose – cannot hold a single soil structure firm or extremely firm – if you cannot break it apart by bare hands.

16. Soil acidity It influences the kind of plants which can grow in it. The acidity of the soil is affected by the water it absorbs , natural and man-made processes.

17. Land pollution Land pollution is the destruction and contamination of the land through the direct and indirect actions of humans. The pollution results in changes to the land, such as soil erosion.

18. Land pollution Mining

19. Land pollution The mining process can lead to the creation of large open spaces beneath the surface of the earth that can lead to soil erosion .

20. Land pollution T he use of harmful pesticides and insecticides in farming to protect crops - these chemicals can cause the land to become barren.

21. Land pollution The garbage found at landfills is filled with toxins that eventually seep into the earth.

22. Land pollution Litter makes it difficult for plants and other producers in the food web to create nutrients. Animals can die if they mistakenly eat plastic.

23. Land pollution A massive landfill at Payatas , Quezon City was the site of a land pollution tragedy in 2000. Heavy rains caused a trash landslide, killing 218 people.

24. The chemical improperly disposed of on the land could end up in the ground water. The process is known as leaching . It can occur on farms, industrial sites, and landfills.

25. Effects of Land Pollution to Human Some of the potential consequences include birth defects , the development of breathing disorders , skin diseases , and cancer . Land pollution has also been linked to developmental deficits in children - child’s cognitive development .