Planet Earth is our world, it's our home is the cradle the habitat of thousands and thousands of forms of life and unique wonders in the universe and we must learn to care for it and love it as is proved necessary, since in the same way that we care about improve and maintain our own home well so must our planet in this way to live better.
WHAT IS THE EARTH?
is our home planet Earth is home to infinite amounts of wonders
one unthinkable variety of fauna, flora, ecosystems, biomes, habittats and life forms we find in it, no doubt LAND is the best megamaravilla the universe and we must learn to treat it as it deserves.
HOW TO CARE FOR THE PLANET?
If each of us contributes IN THE CARE AND PROTECTION OF ENVIRONMENT we can save the planet.
Acontinuacion WILL SEE SOME TIPS protect our planet.
* REGULAR DAILY ELECTRICITY CONSUMPTION (Always turn off the light when you leave the room or when daylight is suficiente.No leave on standby HI-FI equipment, televisions, computers ... A device on standby may represent until
70% of heating consumption diario.Adapte your needs.
1 extra degree represents 7% more than consumption
energético.Descongele as refrigerators, mini-bars and freezers when necessary.
The frost creates an isolation that can lead to 20%
supplementary electrical consumption)
* WATER IS ESSENTIAL FOR LIFE (Repair water leaks that sean¡Un minimum tap flowing drop by drop corresponds to a leak of 5 liters per hour! That is, 35 to 40 m3 to stop running año.Evite uselessly water while shaving, brushing teeth, shampooing in the shower or cleaning the bathroom shower alimentos.Prefiera as it consumes
three times menos.Riegue the garden in the early morning or late afternoon, the earth takes best advantage)
* GAS WELL TO MOST OF ITS PETROLEUM QUANTITIES ARE limitades (Check the cleanliness of the burners on your stove.
A clogged burner consumes more than debiera.Coloque a lid on the pan when you turn the water hervir.El water will heat faster and consume 20%
gas.Proceda least a review of your boiler once a year.
A badly adjusted boiler carries a sobrerconsumode 15%.)
Earth is the largest rocky planets. That makes it can retain a layer of gas, the atmosphere, which scatters light and absorbs heat. During the day prevents the Earth getting too hot and at night it cools. Seven out of ten of the earth's surface is covered with water. Seas and oceans also help regulate the temperature. The water evaporates into clouds and falls as rain or snow, forming rivers and lakes. At the poles, which receive little solar energy, water freezes and forms ice caps. The South is bigger and has the largest reserve of fresh water. The Earth is not a perfect sphere but is shaped like a pear. Calculations based on perturbations of the orbits of artificial satellites reveal that thickens Ecuador 21 km; the north pole is dilated 10 m and the south pole is sunk about 31 meters.
Formation of the Earth
The Earth was formed about 4,650 million years ago, along with the entire solar system. Although the oldest rocks on Earth have no more than 4,000 million years, meteorites, which are geologically to the Earth's core, give dates of about 4,500 million years, and crystallization of the core and the precursor bodies meteorites, are thought to occur at the same time, about 150 million years after the formation of the Earth and the solar system.
After condensed from cosmic dust and gas by gravitational attraction, the Earth was almost homogeneous and quite cold. But the continued contraction of materials and radioactivity of some of the heavier elements to warm made.
Then he began to melt under the influence of gravity, causing the differentiation between the crust, mantle and core, with the lighter silicates moving upwards to form the crust and mantle and the heavier elements, especially iron and nickel, falling toward the center of the Earth to form the core.
At the same time, the eruption of numerous volcanoes, led to the departure of volatile vapors and gases and light. Some were trapped by the Earth's gravity and formed the primitive atmosphere, while the condensed water vapor formed the first oceans.
Earth magnetism
The terrestrial magnetism means that the Earth behaves like a huge magnet. The English physicist William Gilbert was the first he said, in 1600, although the effects of terrestrial magnetism had been used much earlier in primitive compasses.
The Earth is surrounded by a strong magnetic field, as if the planet had an enormous magnet inside which was south pole near the geographic north pole and vice versa. By parallelism with the geographic poles, the Earth's magnetic poles are called the north magnetic pole and south magnetic pole, although its real magnetism is opposite to that indicated by their names.
The magnetic north pole is today near the west coast of Bathurst Island in the Northwest Territories in Canada. The south magnetic pole is on the edge of the Antarctic continent in Terre Adelie.
The positions of the magnetic poles are not constant and show remarkable changes from year to year. Variations in the magnetic field of the Earth include changing the field direction caused by the movement of the poles. This is a periodic variation that repeats every 960 years. There is also a smaller annual variation.
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