There is certainly a rhythm to Grendel's warlike appearance here. He is personified as the devil or devil-like. The author uses alliteration to add impact to a galloping like pace in which Grendel advances (ex. bogs- bearing / trap-trip / God -Grendel).
Answer:
Air pollution, Chances of forrest fire (causing damages to ecosystems and wildlife habitation. Also damages to homes that are in Forrest's), This also causes severe damage to timber crops. More disadvantages are: damaging vegetation, degrading water, deteriorating soils, and toxic gases.
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