if trees need rain to live then why are they so good at keeping it of the gound around them ??
826365
The leaves channel the water to the area at the edge of the leaves...this is where the most efficent water absorbing roots are, so they are getting more water by providing "shelter"....;
411252
roots of forest canopy anchor the soil, prevent it from being washed away, by rains or swept away by winds..
422900
My guess is that they can get bigger during a storm. I think the reason is this:\nWhen a storm is brewing, the warm and cold air cause the clouds to vibrate and the moisture in the rain-clouds begins to 'rub together' so crazily that it creates it's own electricity (just like when you rub a balloon on your head briskly, and then it will stick to the wall for a while, due to the static electricity created)and then comes the lightning - when the static gets too much...it needs to release itself and the only place is EARTH. This sudden release of a high-voltage charge will no doubt cause the cloud to dissipate - thus making a huge downpour of rain...and with larger RAINDROPS!
931675
To give them more stability.  Their roots are not very deep so the tree could be top heavy when fully grown.  The base gives the palm bottom weight and therefore balances the top weight, especially when it is laden with fruit.
387994
It provides a cover for the animals and nutrients that reside there, so that in hot, dry weather, or rainy storms there is covering to keep things from seeping out.\nIt also provides a habitat for many creatures.
1150167
The pine cones on the tree only open to heat. And the heat needs to be as hot as fire.  That way the trees can survive in forest fires.
1106315
The main purpose of plants having fruits is to reproduce. So fruits are generally round so that it will roll a longer distance when it's ripped and drop from the tree. This ensures that the fruit will have a higher chance of survival.
884021
I like Katie's answer...very thorough...sounds like one of my lectures in my college Botany class...also.....due to chemical changes in the leaves and the slowing of the nutrient flow in the tree/leaves fall off due to the formation of an abscission layer of corky material  at the base of the leaf stem or petiole where it attaches to the tree twig. Cutting off water/food and it drys and weakens the attachment, then with a gust of wind shaking it loose to give us some work to rake them up.....oak trees hold tenaciously to their leaves and are often seen with some of their dry browned leaves on them throughout the winter......
445153
because in old times, dogs and cats would hang out on the roof of houses, and when it rained, the roof would get really slippery and the cats and dogs would fall off. The people inside saw the cats and dogs falling past the windows and said it was raining cats and dogs =]
813794
They are not in the family of trees as the don't have trunk. Their trunk is made of leaves... Do u read TOI's Repliyes Believe it or not. the answer appeared in it...
213534
They stay in the sky because they are part of our atmosphere. \n\nDefinition of a cloud - A visible body of very fine water droplets or ice particles suspended in the atmosphere at altitudes ranging up to several miles above sea level. \n\nThey aren't forced to drop to the ground unless they become larger droplets or bigger ice particles forcing them down by gravity - which is what would be rain or a storm.
1038732
So that they can have a nice dry spot - if they waited until after it had rained to lie down then they would get wet tummys!\n\nI'm not sure how they know when it's going to rain though...maybe some kind of 6th sense?!
599370
Hi - have those areas you mentioned any trees left standing??? TREES BRING RAIN!  Everyone in the world please say this twenty times - each day... Water evaporates from dams and lakes and oceans - even oceans of water; in tree leaves... People perspire - Trees transpire Transpiration... Water, H20; --- which forms into clouds at high altitudes and low temperatures, then gets blown away... Only trees bring them back again - TREES BRING RAIN! Trees attract rainclouds and rain - like a magnet attracts iron filings... I once saw a waterfall in the desert! 5 to 10 acres of trees (left standing in a "once" wheat field) above it one single solitary cloud raining heavily; vertically: in an other wise cloudless sky. From one horizon to the other not one other tree was standing... Think flat billiard table. Outback Australia - Man-made desert. Truly! Surely others have seen this too... These areas were once diary farms, green as Ireland, then the "scrub" (read rainforest) was "cleared" (felled)... Once the trees were gone - so was the rain. I have interviewed people who went to school in these areas, still live in these areas which would today not grow a descent cactus... They are the grown up children of dairy farmers - waiting for rain!!! One said - "I was lucky I lived on this side of the creek - I missed a lot of school because it was always flooded." This same creek has not seen water now for decades... You work it out...
737971
Plants play a vital role in our living.\nThey are the very source of Oxygen that make life possible.\n"Plant a Tree to Save a Life."\nIf you protect a tree, it will protect you.
466458
They are beautiful because they have the wisdom to know not to put their faces in the sun. Some go as far as using umbrellas even on rainy days! PS Also they are smaller boned. It is not just their diet!
973867
There are a number of reasons why trees fall in autumn. however, the plainest explanation is that they are preparing for the coming winter. So what is it with winter that trees need to prepare for? During the season, the air is cold, and what comes along it is dry air. Cold air usually doesn't carry much water moisture but the dry air does. this is what the trees are afraid of - to have much of their water absorbed by the dry breeze. As a defense mechanism, all water from a tree is transferred and brought to a place where the dry breeze coudn't reach and affect greatly. The leaves, which are thin and flat, are poor against preserving water and so during the fall, the trees take out the water from the leaves that eventually makes the leaves dry and dead. These dry leaves fall down. and the place where they are formerly attached to is specially waxed with a substance that will prevent the water from drying up or being absorbed.
593033
cell walls keep the cell rigid, so they can stay upright.\n\ncuticles reduce water loss through evaporation, preventing the plant from being dehydrated