find out in the past if there were some biotic and abiotic factors in the ecosystems you have selected.But now they are not found.If this is the situation find out the reasons for their diminition
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there were some biotic and abiotic factors found in the past but they are not existing now it is because they were unable to evolute according to the changed surroundings.
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The reasons why the biotic and a-biotic factors, which were once available are diminished from the earth are:
- Biotic means living matter including animals and plants. If some animals and plants are extinct, that’s because they didn’t adapt with their surroundings, secondly, they have been consumed by other living creatures such as humans
- A-biotic factors include the non-living matter including soil, water and nutrients etc. Increasing population is one of the reasons they are diminished.
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