Why Do Some Trees Lose Their Leaves While Others Stay Green All Year?

Some trees sleep through winter, while others stay awake. Imagine you're wearing a thick coat and your friend is wearing just a sweater, one of you can handle the cold better. Deciduous trees like oak and maple are like that friend who wears just a sweater; they lose their leaves so they don't have to deal with the cold all year. Evergreen trees, like pine and fir, are like the friend in the thick coat; they keep their leaves all year long.

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Examples

  1. A maple tree loses all its leaves in fall while a pine tree stays green
  2. An oak lets go of its leaves to sleep through the winter, unlike a spruce that keeps going
  3. In winter, some trees are like humans who wear coats and others just wear sweaters

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