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noise pollution (n.)
The sound made by ship will cause whales to be
unsure of where they are. It causes whales to hit
the ship accidentally or make louder sound causing
whales to lose their energy for swimming.
.
global warming (n.)
People release greenhouse gases which let the hole
appear in the ozone layer. It makes the temperature
to rise, icebergs to melt and coral to bleach.
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