It is believed by some that 
extinctionCorrect article usage
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  of specific plants and animal 
 is a major problem of 
environmentAdd an article
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  today. Others, 
, argue that other environmental issues are more significant. In my opinion, 
 preservation of living 
 is crucial as 
lossCorrect article usage
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  of one 
 can alter the balance of the whole 
, global warming and 
 are equally worthy to consider. 
, all environmental problems are vital; so, they should be dealt with to make sure 
aCorrect article usage
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  longer survival of all living things on the Earth.
The loss of a 
particularChange the adjective
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  endangered 
 is important because every 
 has its significance in the 
. If one 
 extinct, it would disturb the whole food chain. 
, there could be serious disruptions in the 
 as 
 are dependent on each other. 
 will eventually 
hasChange the verb form
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  dangerous ramifications on humanity because human beings take their nutrition from animals and plants. Depletion of food resources could cause starvation and malnutrition which may lead to 
annihilationCorrect article usage
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  onChange preposition
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  mankind. 
, 
preservationCorrect article usage
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  of all 
 is necessary.
There are many other environmental problems 
these dayChange the determiner
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 , all of them are important, 
, global warming and 
. Increasing global temperatures
,Remove the comma
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  leads to climate changes which 
resultsChange the verb form
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  in melting glaciers, heat waves in winters and cold spells in summers. 
 of all types, whether it is air, water or land, is a concerning issue of 
contemporaryAdd an article
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  era. Carbon emissions from automobiles and power plants by the combustion of fossil fuel have adverse effects on the lives of all living beings. It results in depletion of 
ozoneAdd an article
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  layer which is a protective layer that shields the Earth from the harmful 
radiationsFix the agreement mistake
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  of 
sunAdd an article
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 . 
, 
 is adversely affecting 
healthAdd an article
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  of all living 
. 
, global warming and 
 should be dealt 
forChange preposition
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  the survival of all living things.
In conclusion, conservation of flora and fauna 
 is necessary to ensure a balance in 
ecosystemAdd an article
the ecosystem
an ecosystem
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 . 
, other environmental problems 
 as global warming and 
 are equally imperative. I, 
, believe that it is indispensable to deal with all environmental issues simultaneously to improve 
lifespanAdd an article
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  of all the 
 on our planet.