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Chemistry, 05.03.2021 14:00 MeHelp101

And ... of
in air.
for health
d) Plants and animals maintain the balance
(e) Polluted air is
i The supporter of combustion in air is
to
(8)
Green plants need ...
prepare food
of the
(h) Oxygen is used in
food to get ...
(i) Aquatic plants and animals use
in water.

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And ... of
in air.
for health
d) Plants and animals maintain the balance
(e)...

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