• Brainly User
if a plant is in our backyard then the producers as plant produce oxygen gas to consumer as human.and producer as human produce carbon dioxide gas and water to plant  consumer.
                                          plz mark it best
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Comsumer is the person who utilizes it  and producer is the person who produces the product .
for example: farmer is producer
                      merchant is consumer

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i hope by this you can get an idea