How are human beings interdependent on plants and animals..???

plz ans fast...need it 2day itslf...

See Plants Give Out O2 During Photosynthesis Which Humans Need For Breathing.

Plants Take CO2 Which Animals Give Out As Waste Product.

So Plants Take CO2 Because Animals And Human Beings Give Out Them And Human Beings Animals Take O2 Because Of Plants.

So All Organisms Depend On Each Other

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>For food.
>For medicines and spices.
>For oxygen.
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for air , for food , for fuel and for wood
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