because it's cold
Pines are one of the most resilient plants known, they can survive the freezing cold of Siberia and at the same time grow in warm and tropical areas. They are classified as gymnosperms. All gymnosperms have leaves that are needle-like and reproduce through the use of cones. I'm sure that everyone has wondered why a gymnosperm can keep it's green foliage, even when it is covered in snow and other plants have lost their leaves. The simple answer is that it has leaves like that because it has to survive in cold areas of the world. The narrow leaves are channeled as such because it does not want the snow to rest on it's leaves, so it has evolved to be as small as possible, so the snow can mostly just fall of the leaf. The leaves actually have a special coating on their leaves comprising of special enzymes, so that it does not get affected by the snow in direct contact with the leaves for half the year.
1. to keep warmth. 2. to keep the leaves from falling. 3. and to construct the shape of the conifers needle like.
Both maple and elm trees are deciduous, meaning they lose their leaves in the fall and regrow them in the spring. They do not keep their leaves all year round.
No, continental glaciers form in areas that have cold temperatures all year.
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No. Only evergreen trees keep their leaves all year The Latin term from which the word derives, "decido", means, "to fall off"!
Deciduous trees typically shed their leaves annually, while evergreen trees keep their leaves year-round. Deciduous trees lose their leaves in the fall as a way to conserve energy and water during winter, while evergreen trees have leaves designed to withstand cold temperatures and continue photosynthesis throughout the year.
All evergreens carry their leaves twelve months of the year.
Deciduous trees lose their leaves each year. This is in contrast to evergreens which keep their leaves all year long.
Ice Glaciers
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they normally keep their leaves all year long due to the constant fertilization and moisture in the tree roots and the leaves