AGE OF THE EARTH Scientists have settled on the age of the earth of about 4.6 billion years as a result of research started almost 50 years ago. This conclusion was based upon carefully designed and conducted experiments that compared the ratios in rock samples of parent elements to daughter elements ( some of which would have been from radioactive decay of the parent‚ some of which may have been present in the sample at the time of formation). Since radioactive decay is known to occur at a constant
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The atmosphere of Earth is a layer of gases surrounding the planet Earth that is retained by Earth’s gravity. The atmosphere protects life on Earth by absorbing ultraviolet solar radiation‚ warming the surface through heat retention (greenhouse effect)‚ and reducing temperature extremes between day and night (the diurnal temperature variation).The common name given to the atmospheric gases used in breathing and photosynthesis is air. Dry air contains roughly (by volume) 78.09% nitrogen‚ 20.95% oxygen
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Read More: http://www.esajournals.org/doi/abs/10.2307/1941591 Lorena Salazar Hoyt 7 4 November 2011 Global Warming and our Earths Systems Illustration 1: Marine Bio. The Greenhouse Effect. 1990. Photograph. Our Earths population is getting bigger and bigger everyday. More people being added means more CO2 is being added and that is a huge pollutant to our Earth. Every year three billion metric tons of CO2 are added to the atmosphere every year (“Global Climate Change” ). Pollution has increased
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The World would be a better place if the environment that we’re living was clear. According to me‚ our life is threatened and our environment isn’t healthy for us to live anymore. Air‚ soil‚ and water in many parts of the earth were seriously polluted by industrial and chemical waste. Because of increasing amounts of carbon dioxide‚ global warming has occurred. It led to a lot of effects. It makes the climate change. As a result‚ flooding‚ hurricane‚ tsunamis‚ tornados‚ and cyclone happen everywhere
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Everything Happens for a Reason Leslie Torres English 121 Ms. Rankin November 7‚ 2012 Have you ever heard of “things happen for a reason”? Well I am a firm believer of this quote. I feel like if I didn’t make the choices I did in the past I wouldn’t be here where I am today. Back when I was in high school I made some unwise decisions that caused me to get kicked out of school and be on home studies. Everyone who I thought were my friends never cared to give me a call a text or even send me
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Magnificent Earth In the solar system‚ the earth‚ was made to work properly‚ and in addition‚ to have the ability to allow humans to inhabit on it. Being the only planet that humans are able to live on‚ God have designed and made the magnificent earth genuinely. First‚ there’s the protected atmosphere that’s poisonous in every way‚ but gratefully placed up in the sky‚ ten miles above the surface‚ made from the significant element— oxygen‚ lacking elsewhere in the solar system. Secondly‚ the earth is tilted
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Essay On Sun The Sun has the reputation of being the most stable burning star‚ astronomers observe. Its extreme stability allows humans to exist on Earth. But this stability won’t last forever. The sun is a burning star that allows the planet Earth to sustain life and flourish over the life span of the hydrogen giant. A few questions arise with the sun and its ability to burn so bright without being unstable. For one‚ if this were possible‚ could swallow up to 109 earths to put the stars size
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Creation of the Earth from the Yuchi people and The Iroquois Creation Story from the Iroquois people show slightly different worldviews‚ yet both stories opinion of creation have the element of earth being built‚ created‚ as their titles each allude to. These stories worldviews are more alike than not because they each build from the view that earth’s creations come from a higher being or savior. The savior in each story consciously altered what already naturally existed of earth at that time. This
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Chapter 8: The Sun & The Universe: Secrets of the Sun The sun is classified as a yellow dwarf‚ because of both its color and size. The sun is the only star in our solar system‚ and all of the planets revolve around it. The mass of the sun is equal to about one million earths. It can cause solar storms that interrupt much of our technology and means of communication. The amount of radiation that can reach Earth during a solar storm is particularly easy to reach on the north and south poles.
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NICKNAMES OF PLANETS: Mercury – Speedy Messenger. Venus – Morning or Evening Star. Earth – The Blue Planet. Mars – The Red Planet. Jupiter – Jove or the Galilean System. Saturn – The Ringed Planet. Uranus – Father Sky. Neptune – The Windy Planet. Pluto – The Ice Planet. DEFINITIONS: STAR: A huge body made of hot luminous gas that is held together by its own gravity. Compared to other stars‚ our Sun is a star of average size and energy. PLANET: A large body that orbits a star. Terrestrial
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