Nature in the autumn changes beyond recognition. With the advent of September, leaves and herbs begin to gradually turn into golden tones, and cool mists are more and more often met by people in the morning. Such metamorphoses fascinate the eyes of a curious observer and remind us that everything in life moves in an unchanging circle.
However, how often does a person think about why this happens? Why does nature change so much in the fall? What causes the leaves to turn yellow? Or why does hoarfrost fall on still green grass? Well, let's try to find answers to these questions.
The edge of gold colors
The first changes in nature in autumn begin with the fact that grass and leaves change their green color to yellow and red. Few people know the reason for such changes, but it was in the school curriculum.
As is known, chlorophylls, which are contained in plant cells, give green color to leaves. But, alas, for their normal functioning, a lot of heat and sunlight is needed. And since with the advent of autumn the day becomes shorter, and the temperature gradually decreases, chlorophylls die off one by one.
But the most amazing thing is that this process benefits the trees. Indeed, otherwise, with the advent of winter, they would have been too tight. The reason for this is snow adhering to the leaves and capable of breaking even the strongest branches. In particular, that is why nature in the fall discards all that is unnecessary, including leaves.
First silver shoots
Closer to October, the first frost begins to appear on the grass. It is especially noticeable in the morning, this is due to the fact that the autumn sun at such a time still does not have time to warm the air. But how is hoarfrost formed?
It's all about atmospheric moisture, which condenses on the grass. In the summer, this phenomenon could be observed as morning dew. However, in the fall, when the air is already becoming quite cool, this moisture freezes, thereby turning into small crystals of hoarfrost.
Wild animals
What other changes does nature undergo in the fall? Along with plants, many living things go into hibernation. So, all insects seek deep holes for themselves, so that severe winter frost could not reach them. The same applies to reptiles who seek to find a secluded place.
Many birds also do not like cold weather, and therefore, closer to mid-October, they gather in flocks and go to warmer climes. Only the most adapted species, such as bullfinches, crows or sparrows, remain wintering.
Mammals also feel the imminent arrival of winter, so in the fall they are actively gaining weight, so that the fat layer does not allow them to freeze in winter.