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State whether the following statements are true or false. If false, correct them.
(a) Plants consume oxygen for respiration.
(b) Plants produce oxygen during the process of making their own food.
(c) Air helps in the movements of sailing yachts and gliders but plays no role in the flight of birds and aeroplanes.
(d) Air does not occupy any space.
(a) True
(b) True
(c) False
Air helps in the movement of sailing yachts and gliders and also helps in the flight of birds and aeroplanes.
(d) False
Air does occupy space.
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