Waste that is flushed down to a river is one of the major causes of river pollution.
As with all ecosystems, the existence and operations of human society inevitably have an effect on the way of life in a freshwater community. Particularly in Western society, where a huge amount of resources are harnessed from the land to fund our lifestyle, there is a resulting effect on the ecosystems of our planet.
For each action that man takes in this lifestyle, there is a resultant effect on the ecosystem, and the following looks at some scenarios where human action results in a response from the ecosystem, either physically or chemically, which in the long run affects the lives of organisms that live in these communities:
As you can see, there are many environmental factors that arise due to the usage of water in one way or another by our species. The most important fact to take from this is that when we use water in the above examples, we are upsetting the fine balance of the ecosystem as a whole, which then has a knock-on effect on other organisms living in that particular ecosystem.
In light of this, and more consideration towards our environment, conservation measures are used to ensure that there is no detrimental damage caused to these environments, while at the same time man can continue to harness the water as a valuable resource.
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