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What are the ways by which organisms disrupt the earth’s natural balance? Give at least three specific examples or situations.
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What are the ways by which organisms disrupt the earth’s natural balance? Give at least three specific examples or situations.
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Answer:
Human impact on the natural environment has reached unprecedented levels. Humans are present on all continents; almost all ecosystems have been modified by human activities through habitat loss and fragmentation, overexploitation, pollution, and invasive species.
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.
There are three components to nature's balance:
ecological
evolutionary
population
In an ecological sense, communities were thought to proceed through successional stages to a steady state climax. When disturbed, the community would return to that climax state.
Natural disruptions to ecosystems
Ecosystems change over time. Sudden disruptions such as volcanoes, floods, or fires can affect which species will thrive in an environment. Some disruptions can be devastating for an individual species and may even cause an entire species to permanently disappear in a process called extinction.
What can disrupt volcanoes?
But volcanic gases like sulfur dioxide can cause global cooling, while volcanic carbon dioxide, a greenhouse gas, has the potential to promote global warming.
What can distrupt floods?
Disruption comes in the form of disruption due to: Road closures; limiting access to certain areas, affecting both everyday life as well as emergency services. Loss of homes or businesses. Transport routes for goods and services.
What can distrupt fire?
Three major factors typically influence fire behaviour weather, fuels and topography.
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