What text structure is being used? Which words are a clue to this type of structure? What does this type of structure help the author communicate?What is the overall effect of using a chronological text structure?

chronological , back when and now , the progression of events over time

second option

First option

second option

Explanation:

chronological

back , when , and now

the progress of events over time

explanation:

human affect the biosphere by inceasing air pollution , damaging the ozone layer, worsening global warming , producing non - biodegradable waste, and causing deforestation . the combined effect of human activity results in the destruction of ecosystems

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if

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fond of fighting is the answer