Our Earth.

Hi, and welcome to my posts about our earth. Several years ago I  learn about our amazing, beautiful world. And I am gonna tell you guys about what I learn. Our home is a wonderful world created by God for us to live in it. Let's first learn about the outer appearance of our earth. Way out there in outer space our earth looks like a large sphere (ball). It has vast swarms of white clouds, blue oceans and green land area. At the top of our earth is the North Pole while at the bottom lies the South Pole. Both the poles are covered with ice caps that appeared white. Our earth viewed from space is truly beautiful.

Let's consider about some details about the overall structure of the earth.

                   Size and Shape.

Our earth is shaped like a sphere. However.... our earth is not completely round. It is slightly flattened at the poles. This means that the diameter of the earth measured from the North Pole to the South Pole is slightly less then the diameter across the middle of the earth, at the equator. From pole to pole the diameter of the earth is about 7,900 miles ( 12,714 kilometers ). At the equator, the diameter of the earth is about 7,926 miles ( 12,756 kilometers ). Therefore, the distance from pole to pole is 26 miles ( 42 kilometers ) less than the diameter of the earth at the equator. That's why it's slightly flattened at the poles although it may look perfectly round from far away in space. In the same way the distance around the earth is shorter at the poles than at the equator. At the poles, the earth is 24,860 miles ( 40,008 kilometers ) around. At the equator, it is slightly greater : 24,902 miles ( 40,075 kilometers ) around. However, the equator is not actually the "fattest" part of the earth. The distance around the earth is greatest along a circle slightly south of the equator. Therefore, the earth's shape is a little like a pear, which had it's fattest just bellow it's middle. But this bulge in the earth's shape is so small that the earth still looks like a perfectly round sphere when viewed from space.                                                                            
                                                                             Layers of The Earth

You might think of layers as layers of a cake, but that isn't what I meant. The earth really does have layers, like a cake. The layers name are, from the top to the bottom, Crust, Mantle, Outer Core, Inner Core.
CRUST : The crust is the outer layers of our beautiful earth. It contains all life on earth because life isn't sustainable below the crust.
MANTLE : The mantle is the thickest part of all the layers of the earth. The mantle is made up of two parts. The upper part is name asthenosphere and is 200 km ( 200 mi ) thick, and the lower part is name lithosphere composed of rigid rock about 50 - 120 km ( 31 -  75 mi ) thick.
OUTER CORE : Our earth's outer core is made up of liquid layer about 2.266 km ( 1.408 mi ) thick. It is made of nickel and iron. The temperature of the outer core is estimated about 4.300 K ( 4.030 C; 7.280 F ).
INNER CORE : The earth's inner core is the hottest, innermost part of our earth. It is primarily a solid rock with a radius about 1.220 km ( 760 mi ) according to seismological studies. It is believed to be on an iron-nickel alloy and to be approximately about the same temperature as the surface of the sun : approximately 5.700 K ( 5.430 C ).

Stork

Stork are large birds with long leg, long neck, long stout bills. There are many kinds of stork like Marabou stork, wooly-necked stork, painted stork and many others. All together there are 19 species of stork in six genera. Stork live in many regions of the world, tending to live in drier habitats than other birds like herons, spoonbills, and ibises. Many of the species of stork are migratory. Most of the stork species eat frogs, earthworms, insects, fish, small birds, and small mammals. If you want to know stork's scientific classification  well here it is:
     
                         Kingdom:     Animalia

                         Phylum:       Chordata

                         Class:          Aves

                                                                Subclass:     Neornithes  

                                                                Infraclass:    Neognathae

                                                                Superorder: Neoaves

                                                                Order:         Ciconiiformes

                                                                Family:        Ciconiidae

When they fly they tend to use soaring, gliding technique, which of course conserves energy. Their nests are often very large and old. Some stork's nest have been found to be 2 m ( 6 feet ) in diameter and about 3 m (10 feet) in depth. When they had build a nest they stick to each other like partners.