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Pollution and Degradation of the Lithosphere

Soil depletion and contamination
by Chelsea L on 19 March 2013

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Transcript of Pollution and Degradation of the Lithosphere

The Lithosphere Pollution and Degradation Effects of Farming Contamination Contamination Examples Acid Rain Their Fix? Excessive Use of Pesticides Continual Crop Rotation Soil Depletion Soil Compaction How Does This Happen? Soil Depletion Definition: Soil depletion is the
loss of soil fertility - World population increasingly
- Need more food

Led to: heavy farming machines - side effect of this machinery

Leads to:
- Oxygen deprivation
- Rain run off No time for the soil
to rejuvenate Extra fertilizer - kill micro-organisms, insects etc
- reduce soil balance
- decrease biodiversity Definition: the abnormal presence
of a harmful substance in an environment Fertilizers
Pesticides
Leaks from gas-stations
Leak water from landfills
Mining waste - sulphuric acid and nitric acid
mixed in with the rain water

Effects?

- acidified soil can't keep plant nutrients
- kills micro-organisms
- slows plant growth
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