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Smoking and its effects on our health

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tobacco smoke is very harmful for our health. every cigarette is smoked by someone it damages breathing and causes scar in the lungs. although smoking can impact our everyday life, it causes caughing and shortness of breath as well as it increases the risk of having a respiratory tract infection.  Smoking can harm our senses, mainly the taste and smell, and reduces the ability to exercise and play sport and prevents the oxygen molecules that are held by hemoglobin proteins to pass correctly to all our organs and instead of binding the oxygen gas into hemoglobin then the carbon monoxide gas binds to hemoglobin molecules and damages them after damaging the organs that is incorporatin inside it. and the imternal effects can be also visible as physiological changes such that the yellow teeth, prematurely aged skin, unpleasant odor and so on...  smoking also increases the risk of anxiety and deepression and affects the pragnant women and can cause cancer in most cases.  ...
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characteristics of an effective teacher

Teaching is a very hard work but it is a beautiful job. although it is a hard job, so it needs a teacher that should have the resbonsibility characteristics, abd should be effective. And to be effective she should have all the types of knowledge including the pedagodgigal knowledge, general pedagodgical knowledge, knowledge about the school policy and the curriculum, as well as the content knowledge. the teacher should have a repertoire of knowledge concerning the subject she teach, although she should be knowledgable about the curriculum and what lessons to prioritize. although she should know how to act with the students' parents and what to do if there is a problem...  the teacher should be aware to build a good relationship between her and her students and to help them and meet their needs inorder to have a safe climate in the classroom, but she should be strict also, and have managed her decisions in her plans just to organize her work, and many things she should consider ino...
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pollution

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Pollution is the contaminant of the natural enviroment which is expressed in three major areas. The water, air, and soil pollution. at first air pollution occurs when harmful substances including fine particles and biological molecules are introduced into the earth's atmosphere. it may cause diseases, allergy, or death in humans it may also cause harm to other living things such as animals and food corps. while water pollution is a contamination of water bodies such as lakes, aceans, rivers... this kind of pollution occurs when pollutants such as home wastes, garbage, chemical substances, and sewage are introduced from home and factories in a direct or indirect way without being treated to remove the harmful substances embeded inside them. whiole soil pollution is another type of pollution which is contamination of chemicals in which they are altered in the natural soil enviroment which can cause harmful substances to be found in the plants and they are very harmful. pollution is c...
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