Tema De Ingles
At present there are high levels of contamination caused by man. But not only pollutes it, but there are also natural factors as wellas benefit, can also harm the environment. Some of these are:
Living organisms.
Grazing animals such as cattle are beneficial for vegetation. Your stools pay theearth. Goats, with their hooves and their way to get your food erodes, adversely affect the land.
Climate
Rain is necessary for plant growth, but too muchcauses drowning of plants.
The wind serves to pollen and seed dispersal, a process beneficial to vegetation, but, unfortunately, too much causes erosion.
The snowburns the plants. However, to fruition, some types of vegetation such as araucaria require a cold shock.
Sunlight is essential for photosynthesis.
The heat is necessarybut generates excessive drought, and this, sterility of the earth.
Relief
There are reliefs beneficial (like the mountains full of trees) and harmful, such asvolcanoes, which can affect the ground either ash or magmatic explosive.
Deforestation
This factor greatly affecting the earth because trees and plants take a long time toregrow and are important for the environment.
on Forestry
This point is also detrimental to the environment, as too much vegetation absorbs all the minerals in thesurface where it is. Thus the mineral soil is not sufficient for their own development. One way to avoid this is to use the proper crop rotation to the area.
Forest fires.It may be called a kind of massive deforestation and lasting adverse effects to the ground. The land that has been exposed to fire hundreds of years delay for re-usable.
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