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Ecology is the science of the study of ecosystems. Ecological balance has been defined by various online dictionaries as "a state of dynamic equilibrium within a community of organisms in which genetic, species and ecosystem diversity remain relatively stable, subject to gradual changes through natural succession." and "A stable balance in the numbers of each species in an ecosystem."

The most important point being that the natural balance in an ecosystem is maintained. This balance may be disturbed due to the introduction of new species, the sudden death of some species, natural hazards or man-made causes.

The carpet bombing of the lush green forests during the Vietnam war led to the loss of habitat of many species. Special features on population and the environment show how population has increased from the industrial age and how it will affect the environment. There are additional resources for higher classes.

In the name of development, we remove trees and vegetation, change how we use land, and keep expanding paved areas. All these not only affect the soil ecology, but also the water balances. Increased urbanization also requires more water to feed the city's population and industry, often requiring deeper and deeper wells to be drilled or water to be moved from even more distant locations.

Increase of pavement area not lonely lessens the amount of water vapor that transpires back from the vegetation but also contributes to groundwater pollution if the salt used to melt road ice were allowed to runoff into the natural drainage system.

To understand how human population and increased developmental activities affect the ecosystem, there are live examples all over the world. Armenia is one such example of what is happening to the ecosystem because of increased population and developmental activities. Over the last 1,000 years human impacts on the land have increased, mainly through deforestation and increased use of pastures.

Such problems have

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