Friday, December 12, 2014

The Dirt On Dirt- Unit 6 Blog, yo

Vocabulary!

Asthenosphere- the layer of earth located in the outer part of the mantle.

Lithosphere- the earth’s layers that are located at the outer most layer of the earth.

Plate Tectonics- a theory stating that the earth is divided into plates.

Tectonic Cycle- The process of building up and breaking down the lithosphere.

Divergent Plate Boundaries- the area beneath the ocean that contains the code for reproducing the next generation.

Convergent Plate Boundaries- An area where plates move towards each other.

Transform Fault Boundary- the area where tectonic plates move sideways towards each other.

Physical Weathering- the breakdown of rocks caused by natural disasters.

Chemical Weathering- the break down of rocks caused by chemical reactions.

Erosion- The physical removal of rock fragments from a landscape or ecosystem.

Deposition- The accumulation or depositing of eroded rock material.

Cation Exchange Capacity-ability of soil to absorb. 

Base Saturation- the ratio of soil bases to soil acids.

Soil Degradation- the loss of some or all of a soil’s ability to support growth. 
     
Ores- concentrated accumulation of minerals from which economically valuable materials can be extracted.

BIG Picture Reflection!
Human Impact- Human activity can very much impact soil. A major thing that can impact soil is pollution. When a soil has been polluted it will loose certain nutrients that livings things need to live. In class we learned about soil and took measures of our soil samples to see what our soils were lacking and pollution can be a large impact on why some soils are lacking.

Environmental Impact- Also explained in human impact, the pollution of soil can have a large impact on the environment. Most importantly, the animals that live in the soil will not be able to live there and the animals and humans that rely on the food that grows in the ground will starve. However not all of the soil on earth is polluted so when a soil is healthy and rich in nutrients it causes the animals around it to also be healthy.

Economic Impact- During the notes in class we learned about Ores, which are worth a lot of money today. For an example, Mrs.Kays talked about the drillings near East Texas. These ore drillings are a big economic impact on the people who own the land making them more rich and also the people selling the products found.

Government Legislation- The United States government has recently discovered how disgusting pollution is and is finally doing something about it but as more years go by the laws are getting to be better. The government has laws against where people can drill to reach ores so that the soil around them is not completely destroyed.



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