Nothing
2006-07-08 22:38:43 · 5 answers · asked by Manoj J 2 in Education & Reference ➔ Words & Wordplay
It's because when it is young it is tender and new--like a shoot--it is green. This is why people starting new jobs and stuff are called "green"--because they're not yet mature. As a tree matures and it is subjected to harsh weather, gnawing from animals and insects, sun, breakage ... all the stuff that happens ... it begins to harden and form a protective bark. The bark just so happens to be brown; it is a different substance than the tender shoot.
2006-07-08 22:43:16 · answer #1 · answered by Gestalt 6 · 0⤊ 0⤋
Actually, that's a more interesting question than you might imagine. Someone once explained to me that the red, yellow, orange, etc. that leaves turn in the fall is their natural colour, i.e. it might be more correct to say that the leaves are REturning to their natural colour, rather than turning their fall colours. The green of springtime is the colour the leaves turn when they are infused with chlorophyll which happens so the plant can convert the sunshine into energy it needs to grow. (I suppose it might be likened to your face turning red when you blush in the sense your face is not naturally red, it just temporarily takes on that colour when it's infused with blood which is brought about by a specific situation.) When the plant has done its growing for the season, the chlorophyll is no longer needed and as the plant quits manufacturing it, the green fades to reveal the natural warm hues we associate with autumn.
2006-07-09 11:45:14 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Are you sure it's not just seasonal? Lots of trees turn brown during summer and Autumn, then back to green in early spring
2006-07-09 05:43:16 · answer #3 · answered by Anonymous · 0⤊ 0⤋
That is the way God designed them!
2006-07-09 05:41:58 · answer #4 · answered by Jimmy Pete 5 · 0⤊ 0⤋
sounds like it needs more water. fertilizer
2006-07-09 05:43:32 · answer #5 · answered by Stars-Moon-Sun 5 · 0⤊ 0⤋