Why could removing the true bark kill a tree?
365882
The bark is on the outside of the tree and is usually fibrous and/or corky in nature. It is produced continually and can be either persistent or can be shed regularly (as in many smooth-trunked trees). The reason "ring-barking" will kill a tree is that if all the true bark (ie, the living, growing part, not the dead corky/fibrous part) is damaged then phloem transport of nutrients (products of photosynthesis) from the leaves to the roots is stopped and the roots will die and so will the plant. (The sapwood is xylem and transports water and minerals to the leaves)
8604
well, one reason it's bad to have bar ends is that when you're on a narrow trail, you can hook something, like a branch sticking out. a lot of bikers chop their bars to make them narrower to avoid that kind of thing.
1079103
Leaf blowers are in fact evil.  They come directly from hell where they're used to fan the flames and annoy all with their loud wining engines.  Rakes are so superior because they can be used to make a perfect pile of leave in which you can jump into.
77903
They don't actually "drink" when they are cut like that, they just postpone the bottom from drying out and becoming brittle faster, although it seems the water goes away and you have to refill it often, what is actually absorbed into the branches is very little, which is why there is shedding of needles. And check the bottom of the cut flat area for a slimy-like layer, it works like a bandaid, and less water will be absorbed.\n\nFor the tree to drink, they have to have "feeders" (which are the thinner webbings of roots attached to the larger roots) to absorb the water so it can then travel through each of the "rings" of the tree up to the branches. Even damaged roots won't "drink" as much if it is trying to repair itself from a surface wound,which is easily done by running a lawn mower over exposed roots of older trees that have too little soil around them.\n\nEach ring represents a season, you can actually tell how much water it got each year by the spaces between each ring, outter layers are the newest season
481352
Asbestosis. Small particles get into the lungs & eventually kill you. If you want it removed from your roof, it MUST be done professionaly.
12337
This is a great question!  Normal thought progression would make us think that the water within the trees cells would freeze and cause the wood to rupture and split.  To guard against this, trees do something called "hardening off" once colder temperatures arrive in the fall.  \nHardening off is a process in which the plant increases the sugar and salt content of its stored water in order to lower the freezing point of the water (kind of like antifreeze in your car).\nSome plants also have the capability to actually store ice in their tissues between the cells.  Many trees that grow in very cold climates have this mechanism.
720006
Someone is yanking your chain. Trees do not eat people.
1114658
No. All we know is that it looked appetizing. It was one tree that no longer exists today.
654453
The effective weight of the pine needles, and therefore the branches would be increased.  Happens a lot in New England.  With enough weight, the branches fail to hold the weight , and break. Snow on branches also increases the profile of the tree , and high winds are more likely to blow it over.\nAre you going to get an A for my answer?
1009234
the wasps at our house strip off thin bits of the wood from our gazebo as it is untreated. this is what they mulch up and spit out to build thier nests....*yuk*
15682
What is pinesaw? I am unfamiliar with the term, but anything can kill a person if it is used the wrong way. If it is a commercial product, I suggest you check the labels which should have all the warnings that you need to follow.
1072884
Here is my typical answer to this question:\n\nWhen the tree falls, it does create sound waves, which is simply systematic disturbances in the surrounding air that emanates from the source in all directions. That is true regardless if anyone is there to hear it or not. The fact that somebody's brain isn't there to interpret the sound waves as a sound, doesn't change the fact that the waves exist.
16758
Real, fer shure. The smell of fresh pine means it's Christmas (to me) I couldn't be without it! I used to feel bad about killing the tree, but they are grown especially for this purpose and can be recycled afterwards.
258650
Scientists have been dealing with the problem of natural tree falls (and the sound they make--or don't make) for quite some time and have drawn some rather surprising conclusions. \n\nIf a tree falls and there is a person around the sound is easily recognized. \n\nIf a tree falls in the forest and there is nobody nearby, the sound that it makes is very different and often not recognized as the sound of a tree falling. \n\nEither way, there is a sound.\n\nEven though plants do not show any changes to the naked (or lensed) eye, when a human is in their presence systemic biological changes have been discovered that have grave effects on plant life when a person is within 300 meters. This effect is called "human stress syndrome".\n\nApparently, when a tree is about to fall, if it senses a human nearby the biological stresses of human presence cause the cell walls in the plant to become brittle and it is the cell brittleness responsible for the familiar sound we know as that of a tree fall. The cell brittleness also has significant effects to the quality of the lumber, making it much more suitable for use in construction (see below).\n\nThrough the miracle of recording tape, we are able to provide a sound recording of an actual tree falling without human presence. \n\nCLICK HERE: http://www.getodd.com/stuf/treesound1.wa... to hear what a tree falling in the forest when there is nobody around to hear it sounds like.
287323
Cut the root. It will affect the tree; but will not kill the tree. Water it regularly, once in a week.\n Trees have good life force. They don't give up easily.
755532
Depends on the thickness.  A two-foot radius tree is most likely impenetrable and a bullet won't kill it.  It will however, lodge itself in the tree.  A 6-inch radius tree is most likely not bulletproof and the bullet will go through it.  Lastly, as far as I know, no tree can deflect a bullet, if that's what you were wondering.
778083
the cells in the tree will still be alive right after it's cut from the roots, so it will die some time after that