Nevertheless, the unifying influence of the monsoons on the Indian subcontinent is quite perceptible. ... These monsoon winds bind the whole country by providing water to set the agricultural activities. Thus, in view of the above the monsoon is considered as a unifying bond for this subcontinent.
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Why Farmland is Abandoned:
As groundwater pumping increased, water tables dropped, requiring pumping from deeper levels and at greater costs. Because of the increased cost, irrigation became prohibitively expensive. Farms thus were abandoned as unprofitable, especially in Cochise and Pinal counties.
<span>An extended period of well below average rainfall known as a drought.
If this keep happening, a drought will eventually cause massive shortages in water supply.
Massive shortages in water supply will eventually cause in a decrease of population of various plants and animals</span>