Water pollution Water pollution is the contamination of water bodies . Mostly water pollution occurs in lakes‚ rivers‚ oceans‚ aquifers and groundwater. Water pollution occurs when pollutants are directly or indirectly discharged into water bodies without adequate treatmentto remove harmful compounds. Type of water pollutions There are many types of water pollution because water comes from many sources. Here are a few types of water pollution: 1. Nutrients Pollution Some wastewater‚ fertilizers
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entire organism. Bones are constantly breaking down and rebuilding‚ and calcium is directly involved in this process. Calcium ions (Ca2+) are essential mediators of a wide variety of cellular activities‚ including the passing of information along neurons and between adjacent neurons. Hormonal regulation is also mediated by the proper functions of calcium and calcium ions in the body. Considering all of the roles that it plays‚ calcium is of the upmost physiological importance and is the most abundant
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life) 1 The energy currency of cell is -: (a) ADP 2 (b) AMP (c) ATP (d) GTP [1] (c) Shrink (d) Show plasmolysis [1] (c) Mitochondria (d) Chloroplast [1] (d) Nerve cell [2] [2] [2] [2] [3] [3] [3] [1] A cell in placed in hypotonic solution will -: (a) Swell up (b) Not undergo any change 3 Which organelle release oxygen? (a) Ribosome (b) Golgi apparatus 4 Which of the following human cells lack nuecleus? (a) WBC (b) RBC (c) Muscle cell 5 6 7 8 9 Which organelle is called ‘digestive
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2.3.2 Counter Ion “Most bacterial cell walls are charged with a negative charge‚ so most antibacterial polymers must be charged with a positive charge to facilitate the adsorption process. The composition of the counter ion‚ or polymer-linked ions‚ is used to balance the charge‚ it also affects the antibacterial activity. The counter ion has positive charge‚ which is a strong ion-pair with the polymer will inhibit the antibacterial activity because it will prevent the polymer from interacting with
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Properties of Water Water is essential for life as we know it on earth. It is used by plants and animals for basic biological processes which would be impossible without the use of water. The origin of all life can be traced back to the water in the Earth’s precambrien seas. Water is also the universal solvent. It reacts with more elements and compounds than any other substance known to man. Water is a polar molecule made up of on atom of hydrogen and two atoms of oxygen. It is attracted
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Substance abuse‚ also known as drug abuse‚ is a patterned use of a substance (drug) in which the user consumes the substance in amounts or with methods neither approved nor supervised by medical professionals. Substance abuse/drug abuse is not limited to mood-altering or psycho-active drugs. If an activity is performed using the objects against the rules and policies of the matter (as in steroids for performance enhancement in sports)‚ it is also called substance abuse. Therefore‚ mood-altering
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MEGAN KINNAIRD PRESS RELEASE – FACEBOOK ASSIGNMENT NEWS ALERT ATTENTION: ALL NEWS EDITORS 20TH APRIL‚ 2011 FOR IMMEDIATE RELEASE Conservation‚ Research and Rehabilitation at Chipangali Chipangali Wildlife Orphanage was established in May 1973 by Vivian John Wilson and his wife Patricia Wilson. The orphanage resides in an area in the south of Zimbabwe. Its’ primary function is to offer a home for orphaned and abandoned wild animals. Its’ five main objectives are conservation
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Chemist from the University of Glasgow in Scotland have taken a step closer towards producing clean hydrogen fuel in a maintainable way. Hydrogen gas is able to be burned to generate electricity without producing lethal releases‚ unlike fossil fuels. It is produced from water releasing them as gas‚ through a process called electrolysis‚ which uses electricity to break the bonds between hydrogen and oxygen. This technique is 30 times faster than the current method‚ and can be powered by renewable
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Psychoactive Drugs‚ 45 (1)‚ 28–38‚ 2013 Copyright © Taylor & Francis Group‚ LLC ISSN: 0279-1072 print / 2159-9777 online DOI: 10.1080/02791072.2013.763560 Substance Abuse Treatment for Adolescents: How are Family Factors Related to Substance Use Change? Karine Bertrand‚ Ph.D.a ; Isabelle Richer‚ Ph.D.b ; Natacha Brunelle‚ Ph.D.c ; Isabelle Beaudoin‚ Ph.D.d ; Annie Lemieux‚ M.Sc.e & Jean-Marc Ménard‚ M.A.f Abstract — Parental involvement in adolescents’ substance abuse treatment is highly
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Name___________________ Date ___________________ A Child Called “It” by Dave Pelzer Review Worksheet Chapter 2- Good Times Part one: Character Identification: Describe who the characters are and what relationship they share with the main character. 1. Stephen Joseph = He was David’s father. He was a fireman and stood about 5’10 and weighed about 190 pounds. He had broad shoulders and forearms that would
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