soil erosion in Iran
The removal of fertile topsoil by the action of wind, rain and river water is called soil erosion.
Soil erosion is the process of detachment of soil particles from the parent body or disturbance of the soil structure is known as soil erosion. Generally, soil erosion is called as the creeping death of the soil. Soil erosion is considered as negative soil pollution.
Causes of Soil Erosion:
Soil loss is maximum in the region with high population densities. Globally the present rate of soil erosion is over 2500 million tonnes/year. The chief causes of soil erosion are:
1. Land-use changes involving the destruction of forests and grasslands for expansion of agriculture and other commercial activities.
2. Overgrazing of pastures.
3. Fallowing of land for a longer duration.
4. Overuse of chemical fertilizers under intensive cultivation practices destroys the soil structure consequently the soil becomes susceptible to erosive forces.
5. Shifting cultivation by tribal population.
6. Continuous cultivation of the same crop.
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The two most important factors in the climate of an area are temperature and precipitation. The yearly average temperature of the area is obviously important, but the yearly range in temperature is also important. Some areas have a much larger range between highest and lowest temperature than other areas.
Written under the 2018 ICD-10-CM Diagnosis Code Disorder of Disc M51.9 - Unspecified thoracic, thoracolumbar and lumbosacral intervertebral disc disorder:
Neuritis (rheumatoid) M79.2due to herniation, nucleus pulposus M51.9
The (ICD-10-CM) or International Classification of Diseases Clinical Modification, Tenth Revision, is a system utilized by physicians and other healthcare providers to classify and code all diagnoses, symptoms, and procedures recorded in line with hospital care in the United States.
All the phase changes involve transfer of energy
gravity affects the water cycle because it pulls denser water down and less dense air up. it also causes precipitation to fall from clouds. sunlight provides energy for the water cycle
Answer: B.) (City A is on a coast while city B is in the middle of a continent.)
Explanation:
