For question one it asks "what substance does a tree use for good" i annswred c glucose. the next question asks " what four things does a tree need for photosynthesis. i answered "the four things a tree needs for photosynthesis is light energy, water, carbon dioxide, and chlorphyll. the next question asks "what causes a trees leaves to appear green" i answered "it causes to turn green because it is summer and spring". next question asks "what signals a tree to preparing for winter". i answred"d there are fewer hours of sunlight"next question asks "how does a tree get water"? i answered "c it absorbs water through it roots. last question asks why do a trees leaves change colour in the fall? i answered " a the tree has less chlorphyll". tell me if all of them are correct. you! (: