Friday, August 17, 2012

How Life was Created on Earth

               Earth, the home of mankind, the home of many plants, but what is important is how it started? How did life start on the planet earth, and what was earth like before it got all green, and filled with dirt and water?

                Earth is green, it can be hot in some places, it can be cold, it can be wet, it can be completely dry, there could a tornado, and there can be no clouds in the sky! The earth is fascinating, it is the home to many things (even though we are destroying it), and it is believed to the only place in the galaxy called “The Milky Way” that actually has life form on it. But before it was all green and prosperous, what was it? A ball of dust and gas, then a blob of lava. Ever wonder how the moon was created? The truth is that the moon is actually a part of the planet earth. Earth was lava that was being compressed and turning to rock, but while that was happening, another planet came and the two planets collided to make one. This sent a huge chunk of lava into space which is now known as the moon. While it was in space it formed a ball and hardened, and it became as smooth as can be. The moon then got all of its craters from meteorites smashing into it to this day. The earth then cooled down and became rock, with an atmosphere. In fact today the core of the earth is still lava.

                How could anyone live on the earth though without the atmosphere? They wouldn’t because there would be no oxygen therefore nothing would be able to breathe and everything would die. The atmosphere is 78% nitrogen, 21% oxygen, and 1% others (carbon dioxide, water vapour and ozone). It surrounds the earth to so we can live but its quality is gradually degrading because of all of the pollution.  The atmosphere created the weather, and with all of the rain, the oceans, lakes, ponds, and rivers were formed. This is life started.

                At the beginning, the planet surface was covered with water,  In some places, there were ponds of chemical soups called amino acids.  It is believed that elementary life formed when the amino acid was got struck by some lightning.  This, scientists believe, created the first life form to be born on this planet, the most simple, basic, and some hated: bacteria. Bacteria was the first species on the planet, and it signalled the first geological era: the Precambrian Era. This is when there was only bacteria and plants on the earth. Some bacteria stayed the same in the era, and some evolved into plants and trees, which is what turned the earth green. But in order to survive, all the life forms stayed close to a so that when thirsty they could drink water. The Precambrian Era lasted about an eon, it is not even known how many years it lasted. After that was the age of the plants, plants dominated this earth, and bacteria was minimized. This is truly when the green planet was formed, and animals like fish and chickens and all those other animals were formed. That was known as the Paleozoic Era, it lasted about 325 million years. That is an extremely long time. After came the rule of the dinosaurs, that was known as the Mesozoic Era. A fun fact is that dinosaurs were at first no larger than chickens. That is CRAZY! As the dinosaurs were born, the larger they got. This why they got HUGE, then they died It is unknown some say it is because a giant meteorite hit the earth, others say it because of the first ice-age, but no-one is certain. Mankind was made in the Cenozoic Era, or more popularly known as: now.

                The theory that humans were evolved from apes is an extremely popular explanation, many scientists believe it is true. This theory was created by Charles Darwin. It is believed that humans were apes, but gradually over time, a fascinating evolution occurred and after a bit, they became humans. Since they were apes, they still knew what they knew when they were apes such as how to survive, and what and how to breed. From there, the famous cavemen were there, and from there they discovered new things, such as how to build houses, how to create traps, how to connect to a water source etc. Mankind kept evolving and after a very long time, today arrived.

                From here on are the religious beliefs. First off is the belief that Jesus (Christians), or Allah (god, Muslims), created Adam and Eve. Adam was created from dust, and Eve was made from one of Adam’s ribs. Eve was destined to be Adam’s wife, and from there they had babies, and they discovered new technologies. Adam and Eve is a really old story, and is believed by many religious people today, this is one of the religious explanations.

                The second explanation was created by Greeks in Greek mythology. It is believed there are more than one god. It is believed there are many gods, each in control of specific things. For example the big three: Zeus, the god of the sky, Poseidon, the god of water, and Hades, the god of the underworld. In Greek mythology it is said that the titan Morpheus and the god Athena made humans from clay. This is because Morpheus was told to create humans. Morpheus created the humans from clay, and Athena breathed life into them. From there man had most of its advancements, with a little bit of help. It is also said that they had to make sacrifices to Zeus from their foods. Morpheus got in trouble for tricking Zeus and was severely punished, but that is off topic.

                Now it is understood how life was created, and a bit of before it was created as well. A bit of Science mixed in with a bit of Geography et voila! This essay has been made by those two important topics, as if they bred, for the billionth time (exaggeration). Geography and Science are both important topics, and they created this earth, like god created Adam and Eve. Remember, great things come in small packages, you could say a lot of the recent essays have morals… but that does not matter.         

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