WHY ? is our attempt to answerall the questions every little kid expect . Have a question ? Send it towhy@mentalfloss.com .
Have you ever question why some trees keep their leave in winter when all the other leaves fall off ? Trees have different life cps , and are either calleddeciduous(de - SID - you - us ) or evergreen . Trees with flat , wide leaves that release pretty colours in the evenfall are deciduous . They will drop their leave of absence when the weather gets cold . evergreen plant Tree , on the other hand , lose their leaves throughout the class a small scrap at a clock time .
First , we need to let the cat out of the bag about how trees get intellectual nourishment , or energy . Tree use the get-up-and-go from sunlight and water to turn carbon dioxide into a sort of intellectual nourishment . This summons is calledphotosynthesis(foe - toe - SIN - thuh - SIS ) . The days get shorter in capitulation and wintertime , so there is less sunshine energy to use . Deciduous trees close up the fiddling holes where the leaves seize so they do n’t losemoisture(MOYS - chur ) , or piddle . This makes the leave of absence set down off . Evergreen tree diagram do n’t have to drip their leaves .
Evergreen trees first came from cold climates . ( But you may find many in warm tropic rainforests too . ) They have very strong leaves flap up tight , like longsighted , thin needles . This physical body allows the evergreen to keep up water , which is needed for photosynthesis . Because they have more water than their deciduous cousins , their leaves ride out unripe , and stay attached longer . evergreen plant needle also have a very waxy coating that also helps save water during summertime and winter . Christmas tree are in general evergreens like spruce , fir , or pine .
To learn more about the life history of Sir Herbert Beerbohm Tree , view thisshort filmatNational Geographic .
