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Human Activities that Affect the Earth's Lithosphere

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Cyvanah Byrd-Eley

on 7 October 2014

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Transcript of Human Activities that Affect the Earth's Lithosphere

Agriculture
How Have We Affected Earth's Lithosphere?
Humans have changed the face of the Earth more than any other species, and the pace of change is increasing.

Our most obvious impact is on our lithosphere, where more than 80 percent of Earth's surface has been marked by human activity. These transformations go back at least to the beginnings of agriculture more than 10,000 years ago.
Deforestation
Urbanization
Urbanization is the increasing number of people that migrate from rural to urban areas
Urbanization is the science or practice of farming, including cultivation of the soil for the growing of crops and the rearing of animals to provide food, wool, and other products.
Cause & Effect
Cause: The need for food to eat and to sell, also for animal use
Mining
Mining is the process of obtaining coal or other minerals from a mine.
Drilling for Oil and Natural Gas
Oil and Natural Gas are nonrenewable resources that will eventually run out. People drill for them for many uses.
Overgrazing
Overgrazing is the removal of excessive amounts of plant growth by animals in one area.

Human Activities That Affect the Earth's Lithosphere
By: Cyvanah Byrd-Eley October 7, 2014

Deforestation is the clearing of Earth's forest on a massive scale, that often results in damage of the land.
Cause & Effect
Cause: Forests are cut down for many reasons, but most of them are related to money or to people's need to provide for their family.
Effect: Deforestation causes damage to land, and less space for animals to live, or destroys their habitats.
Cause & Effect
Cause: people farmers moving from villages & small towns to cities to find higher paying jobs and more opportunities
Effect: Causes over population, more pollution, and can result in very high levels of erosion and sedimentation
Effect: It can take up a lot of space, the uses of chemical pesticides, and fertilizers can contaminate soil and affect soil fertility, and can strip the vitamins from soil.

Cause & Effect
Cause: it can be caused by having too many animals on the farm or by not properly controlling areas.
Effect: increases erosion and strips away topsoil, resulting in no plants able to grow.


Cause & Effect
Cause: People mine to earn money, and use the materials for many different uses
Effect: it increases the risk for sinkholes and cave ins.
Strip mining also destroys the environment
Cause & Effect
Cause: To earn money, and to get needed resources such as gas, to use in cars for fuel
Effect: Drilling can cause the lithosphere to be disturbed. It can cause earthquakes.
Soil and groundwater can be contaminated
Full transcript