Answer:
Carbon dioxide
Explanation:. Carbon dioxide enters through tiny holes in a plant's leaves, flowers, branches, stems, and roots. Plants also require water to make their food.
Plates include both oceanic crust and continental crust. Stable subduction zones involve the oceanic lithosphere of one plate sliding beneath the continental or oceanic lithosphere of another plate due to the higher density of the oceanic lithosphere.
Fossilized non-seed vascular plants from the Devonian period have been identified.
<span>The Devonian is an early period and conformity of the Paleozoic Epoch forming from the edge of the Silurian Era.</span>
Carbon dioxide is the compound in photosynthesis, I'm pretty sure