ALKALINE EARTH METALS what are alkaline earth metals? Alkaline earth metals are elements that are in the second group of the periodic table. the elements have two electrons on the outermost shell. the elements include Beryllium‚ magnesseum‚ calcium‚strontium‚ barium and Radium.The alkaline earth metals are all silvercolored and soft‚ and have relatively low densities‚ melting points‚ and boiling points. In chemical terms‚ all of the alkaline metals react with the halogens to form the alkaline earth metal halides
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Our planet is in great danger. For the last one hundred or so years‚ the people of earth have wasted and misused the natural recourses of earth. Several plans have been developed to stop the abuse of earth. Some of these plans I will discuss in this essay‚ many of which can be executed by any one. Environmental problems have become so complex that many individuals feel they can have no effect on them. Problems like oil spills‚ hazardous waste‚ loss of rain forests‚ endangered species‚ acid rain‚
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activity can damage the Earth Human have been damaging on the Earth for thousands of years. In fact‚ human activity has big influence on the Earth. Some people believe that the Earth is being damaged by human activity. In my opinion‚ I really believe that the human is damaging the Earth. There are three main ways to damages the Earth from human activity are deforestation ‚ poisonous gases ‚ and it makes pollute the environment. First‚ a human activity that damages the Earth is deforestation. Deforestation
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What are the origins of life on Earth? This question has been highly debated by scientists for a long time. Scientists are trying to determine what makes Earth so unique that life thrives here but in no other planets that we are aware of. There are several theories that scientists have proposed in trying to determine the origins of life on Earth. Some theorize that life derived from an extraterrestrial source‚ others believe autotrophs were the source‚ and other groups hypothesizes that heterotrophs
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The 1961 essay of “The Wretched of the earth” by Frank Fanon follows up his 1951 book: “Black Skin White Mask”‚ which explores colonialism and people’s interaction with it from both the colonized and the colonists side. However‚ what we were assigned to is the preface of the essay‚ written by famous philosopher Jean Paul Sartre. Sartre’s mission with this piece is to give a detailed description to how the groups mentioned above‚ colonized and colonist people‚ differentiate from each other‚ how colonizers
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For many centuries humans have lived on planet Earth and being environmentally friendly is the least we can do. Earth must cope with various problems due to the constant change of society and it is unfortunate to say that it is us who has created the troubles. It is important that Earth stays healthy and we can always do our part to protect planet Earth. “We do not inherit the earth from our ancestors; we borrow it from our children.” So goes the ancient Native American’s saying‚ a phrase that
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Ms. Webb English 0321-309 Nov. 14‚ 2011 Saving Planet Earth I was reading a story about recycling‚ and what it means to recycle‚ it means to reduce and reuse materials so that we save the raw materials. If you reduce and reuse it saves on greenhouse gasses and emissions. It will keep our earth greener. My husband is a recycling coordinator for Texas A&M. When I first moved here I worked as a recycling assistant‚ which
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One and a half acres of the rain forest-“the Lung of the Earth”‚ are lost every second. In fact‚ they now cover only a mere 6% of the earth’s land surface compared with 14% when humankind first settled. Experts estimate that the last remaining rain forests could be consumed in less than 40 years. Obviously‚ deforestation has been becoming an alarming phenomenon for the whole world. Writing about this issue‚ Laura Lopen‚ John Maier and Dick Thompson express some quite strong opinions. In “Playing
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UR EARTH SPEECH Our earth is the only beautiful planet in our solar system. This is the only planet which has life. Since 200 a.d. everything was good‚ but since the development of human culture‚ cities and modern life style everything has been changed. Now man and other animals started behaving differently. Man started using and misusing natural resources up to the limit. Now we don’t have crude oils‚ coals‚ less forests‚ wild animals. Our environment
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Earth Day is an annual event‚ celebrated on the 22 of April‚ on which events are held worldwide to demonstrate support for environmental protection. It was first celebrated in 1970‚ and is now coordinated globally by the Earth Day Network‚ and celebrated in more than 192 countries each year. Earth Day is the perfect time to think outside the box. What are the consequences of our choices? What products are better for the earth? What should we avoid? Just as you might suspect‚ there’s more to saving
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