/ / Tree is an amazing treasure given to man by nature

The tree is an amazing treasure given to man by nature

The tree is an amazing wonder of nature.If this plant had not appeared, then our world would never have become as we used to see it. And life itself as such would not exist, because trees produce oxygen, which is so necessary for the development of most organisms.

But how much does a person know about a tree?How well has he studied its components, types and methods of reproduction? Do you know why many trees in the fall shed their leaves? And what even makes scientists puzzled today?

tree is

What is a tree?

The answer to this question should know evenfirst graders, because this material from the program of primary school. The tree is a type of perennial plants, the distinguishing feature of which is the presence of a stiff trunk. At the same time, over the years, it only increases in size, and does not die off at the end of each season.

Trees grow almost everywhere exceptAntarctica and some desert areas. What is true, even in the hottest corners of the Earth, covered with hot, lifeless sand, you can find secluded oases with magnificently growing palm trees and laurels.

Types of trees

In general, this type of plant can be divided into two large species: conifers and broad-leaved.

As the name suggests, conifer- this is the one that has needles and scales instead of leaves. Vivid examples of such crops are spruce, pine, cypress and fir. However, most conifers are evergreens.

trees in autumn

Broad-leaved, on the contrary, at the ends of the brancheshave thin leaves. At the same time, their shape, depending on the specific wood, is highly modified. In most cases, only one of their appearance can exactly determine which plant they belong to.

Also, the person selected in separate classes thosetrees that can bring him special benefits. For example, there are fruit plants that are cultivated in gardens to harvest from them. There are also valuable species whose wood is intended for building houses, shelters, crossings and even ships.

The structure of the tree

A tree is a very complex mechanism.Even today, scientists can not understand some of the processes occurring inside its cells. In particular, they are particularly interested in photosynthesis, due to which carbon dioxide is converted into oxygen. This is such a complex chemical process that, even having understood its nature, chemists still cannot reproduce it in the laboratory.

If we talk about the overall structure of the tree, theneverything is much simpler here. It consists of four main parts: roots, trunk, branches and leaves. In addition, each of these components performs its own, unique and irreplaceable function.

What do trees do in autumn and winter?

As mentioned earlier, some trees remain green for a year, while others shed their leaves with the onset of the first cold weather. Particularly inquisitive minds asked the question: "Why do they do it?"

First, it is a self-preservation mechanism,worked out for many years of evolution. The fact is that trees in winter, due to frost, become very fragile. This is especially true of small branches that have not yet had time to get stronger. If the leaves do not fall off, then snow will settle on them, thereby increasing their weight. Ultimately, this will cause the branches to sag and break.

trees in winter

Another cause of falling foliage isslowing down all life processes in a tree trunk. It seems to hibernate, which lasts until spring. However, scientists still do not know for sure when exactly deciduous species began to behave this way. As for their coniferous “brethren”, they have almost no such mechanism of sleep.

The tree is the true treasure of the planet.

In conclusion, we would like to note that trees arelungs of the planet. If they are not, then humanity is likely to die with them. That is why it is so important that everyone remembers their role in our life.

what is a tree

It should be noted that at the momentthe number of all trees on the planet exceeds the level of 3 trillion. And each year, due to cuttings and expansion of urban areas, this number is reduced by 15 billion. This trend, alas, cannot lead to anything good. And therefore let us hope that in the future, people will still learn to use the resources of the planet more rationally.

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