Sequestration - Storing of C02 in the tree, Photosynthesis - Plants making their own food, Chlorophyll - Pigment that gives the leaves its colour, Pith - Very centre of the tree, Annual Rings - A years growth, Earlywood - Trees most growth in spring, Medullary rays - Store of trees extra food, Bark - Outside of the tree, Sapwood - Lighter coloured wood, Cambium Layer - Made up of xylem cells,

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