There are lots of things that can cause leaves to.

Level toLevel Leaves falling off the trees each year is Answer. See Screenshot. % of users think this is correct. Thanks for helping your fellow gamers! See your trophies and reputation in the page header. You unlock the following rewards when you vote. First Vote.

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Sep 01, There are three general reasons why trees lose their leaves early. The canopy is crowded. Some trees may have grown more leaves than they can support, so they drop leaves to conserve water in hot, dry weather. th. It's a pest or disease. See what summer pest could be hurting your tree leaves. The simple answer is this: Leaves fall off trees so that the trees can survive the winter.

But the word “fall” is a bit misleading. It implies that the trees are passive this time of year, when, in fact, they are actively “pushing” the leaves off their branches. Those with leaves that fall off yearly are called deciduous while those with leaves that stay on are called evergreen. As daylight diminishes in fall, the leaves of deciduous trees are no longer needed and are shed, allowing the trees to survive winter.