1.

Gas Xisan active component of air . X reacts with caobon to form gas Y. Y is one of the products of _______________ and _____________.

Answer»

RESPIRATION , combustion
photosynthesis , respiration
combustion , transpiration
photosynthesis, transpiration

Solution :Gas X is oxygen and Y is CARBON DIOXIDE . Carbon dioxide is one of the PRODUCTS of both combustion and respiration.


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