I am going to Rapid City‚ South Dakota for my vacation. I chose to go here because it is the first family vacation spot I can remember going to as a child with my parents. South Dakota is located in the central part of the United States. Rapid City is located in western South Dakota. The weather here changes with the seasons – cold‚ snowy winters and hot summers. Hotel I am staying at is the Fairfield inn and suites. We will be staying in the Wa Tiki luxury suite. The room has 2 bedrooms
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the reduced number of glaciers worldwide. Most of the glaciers are shrinking as a result of global warming. These glaciers are a natural habitat for certain animals. For example‚ in Ice Age 2‚ it shown that a glacier that contains two reptiles‚ Cretaceous and Maelstrom‚ breaks off. Fifth‚ climate change has contributed to biodiversity loss. Certain plants and animals risk extinction due to the changes weather patterns. This is not only a threat to the life of such animals but also to other animals
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crystals‚ discovered by miner brothers‚ Juan and Pedro Sanchez in 2000. The caves were discovered while drilling through the Naica fault during a mining expedition. The giant crystal caves are in the shape of a horseshoe and have been carved out of cretaceous limestone rocks. The caves‚ which are located 1‚000 feet underground‚ have an average temperature of 50° C with 99% humidity. The hot and humid environment within the caves requires a special suit equipped with oxygen to enter the cave without risk
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cells in the brain communicate through electrical and chemical signals. --Submitted by Torsten Weisel‚ Rockefeller Institute‚ New York 3. Did dinosaurs and humans ever exist at the same time? Answer: No. Dinosaurs went extinct at the end of the Cretaceous period‚ 65 million years ago. Modern humans did not appear until around 200‚000 years ago. --Submitted by Andrew C. Revkin‚ New York
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Paleological evidence for homoeothermic tendencies in theropod dinosaurs in the Cretaceous Period Abstract Dinosaurs were considered to be cold blooded reptiles until several shocking discoveries and studies have changed the way that the general public has viewed them. Theropod dinosaurs have been selected to be analyzed because they have the strongest evidence pointing to warm blooded tendencies across the class. Carbon and oxygen isotopes in teeth enamel and physical fossilized data can be used
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marine sediments aging from the Devonian to the Jurassic. The take home message about the Angayucham terrane is that it potentially was a part of a large thrust sheet of oceanic rocks which took over the Arctic Alaska terrane during the Jurassic and Cretaceous time period. As mentioned above‚ the stratigraphy of the region is composed mainly of marine
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The truth is: trees are not green. The true question you are asking is why LEAVES are green. However‚ I doubt you have any interest in leaves‚ so let me tell you more about trees. A tree is a tall plant with a trunk and branches made of wood. It can live for many years. The four main parts of a tree are the roots‚ the trunk‚ the branches‚ and the leaves. The roots of a tree are usually under the ground. One case for which this is not true are the roots of the mangrove tree.[1] A single tree
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The Himalayas – Young Fold Mountains The Himalayas are known to be young fold mountains. Young‚ because these have been formed relatively recently in the earth’s history‚ compared to older mountain ranges like the Aravallis in India‚ and the Appalachian in the USA. They are known as fold mountains because the mountains extend for 2500 km in length in a series of parallel ridges or folds. The accepted theory about the formation of the Himalayas started to take shape in the year 1912 when German
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Extinction is the ceasing of a species to exist on this Earth. A species officially becomes extinct when all of the species no longer exists. A species is to become certainly extinct when there is an extremely small number of it and it is unable to reproduce to create more of itself. Therefore‚ we say a species is in for certain extinction if it cannot reproduce itself. Extinctions occur at a great pace and species that we did not even know existed become extinct all the time. Scientists say that
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and high-efficient powder and superfine powder processing machinery which is used for grinding the medium and low-hard material that Moh’s hardness is below 6‚ humidity is less than 8%‚ and non-flammable non-explosive minerals‚ such as calcite‚ cretaceous‚ caoline‚ limestone‚ bentonite‚ talcum‚ mica‚ magnesite‚ illite‚ pyrophyllite‚ vermiculite‚ sepiolite‚ Attapulgite clay‚ rectorite‚ diatomite‚ barite and so on.The classified powder could be adjusted between 300 and 2500mesh. with the classifier
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