Science Essays

Acting to save mother earth
Acting to save mother earth Everday we hear more bad news about our planet. Reports tell us that wildlife and forests are disappearing at an alarming rate. Newscasts give the latest word on how quickly earth is losing its protective shirld and warming up. Newspapers lament the pollution of our air, water, and soil. What can we do in the face of such widespread gloom? In fact, we do not have to feel helpless. We can each learn practical ways to better our environment. For ...

Acid rain 7
Acid rain 7 Acid Rain INTRODUCTION: Acid rain is a great problem in our world. It causes fish and plants to die in our waters. As well it causes harm to our own race as well, because we eat these fish, drink this water and eat these plants. It is a problem that we must all face together and try to get rid of. However acid rain on it's own is not the biggest problem. It cause many other problems such as aluminum poisoning. Acid Rain is deadly. WHAT IS ACID RAIN? Acid rain is all the rain, sno...

Acid rain 8
Acid rain 8 Acid Rain is a type of air pollution, which is formed when oxides of sulfur and nitrogen combine with atmospheric moisture to yield sulfuric and nitric acids, which may then be carried long distances from a source before they are deposited by rain. This pollution may also take the form of snow, fog, or a dry form of precipitation. Acid rain is currently a subject of great controversy because of widespread environmental damage, for which it has been blamed, including eroding struc...

Acid rain 9
Acid rain 9 Acid rain is a serious problem with disastrous effects. Each day this problem seems to increases, many people think that this issue is too small to deal with, this problem needs to be solved head on and it should be solved before it gets too late. In the fallowing paragraphs I will be discussing the impact it has on the wild life and our atmosphere, how our atmosphere is being and becoming destroyed by acid rain. Acid rain is a cancer eating into Eastern Canada and the North...

Acid rain, effects and causes
Acid rain, effects and causes Acid Rain Acid rain is a term which is used to describe a variety of processes which might more accurately be referred to as acidic deposition. Natural rainfall is slightly acidic due to dissolved carbon dioxide, picked up in the atmosphere. Organisms and ecosystems all over the planet have adapted to the slightly acidic nature of normal rain, and thus it poses no environmental problems. It is an increase in the acidity of rain, caused by human activities...

Acid rain 2
Acid rain 2 What is acid rain? Acid rain is caused by emissions of sulphur dioxide and nitrogen oxides. Although natural sources of sulphur oxides and nitrogen oxides do exist, more than 90% of the sulphur and 95% of the nitrogen emissions occurring in eastern North America come from human origin. These primary air pollutants come from the use of coal in the production of electricity, from base-metal smelting, and from fuel combustion in vehicles. Once released into the atmosphere, they can...

Acid rain 4
Acid rain 4 The Acid Rain Pain With scientists and so-called �experts� on the environment disagreeing on so many issues, it is easy for the public to be lost in the fray of what is truth and what is media hype. Though the term �acid rain� has been present in our society since the early 1970�s, many people are not exactly clear on what it is what causes it, and the detrimental effects acid rain has on our environment. More confusing than all of the facts and scientific theorie...

Acid rain 5
Acid rain 5 ABSTRACT This report involves a well description on acid rain as well as a focus on acid rain in eastern Canada. This report contains a very helpful basic background on acid rain as well as a questionnaire. It involves an annual report on the Federal-Provincial Agreements, sulphur dioxide emissions in the seven most eastern provinces, trends in acid deposition in the Atlantic provinces from 1980-1994, as well as acid precipitation in Kejimkujik, Nova Scotia. It also inclu...

Acid rain 6
Acid rain 6 Acid rain is a type of precipitation with high acidity caused by the polluted atmosphere. It comes down in different types of precipitation such as: rain, snow. hail, or sleet. Acid rain is gradually wearing down our environment, affecting countries in almost every continent. One of the main causes of acid rain is sulphur dioxide. Natural sources which gives out these gases are volcanoes, sea spray, rotting vegetation and plankton. However, the burning of fossil fuels, su...

Acid Rain
Acid Rain....and what are we g Acid Rain is caused by pollution containing sulfur dioxide, nitrogen oxide, and ozone ( SO�, NOx, and O� ) is released into the air. These chemicals are absorbed into clouds and results in Acid Presipitation ( Acid Rain, Acid Snow, Acid Hail, Acid Sleet ). When the chemicals aren�t absorbed into clouds, they can drift for miles and fall to the ground, resulting in Acid Deposition, or dry deposition. When Acid Rain falls into water it is mixed in...

Acid Rain
Acid Rain The Effects of Acid Rain on Lakes and Trees Acid rain has long been argued by society�s most formidable minds. It indirectly destroys ecosystems that surround forests and lakes (Taylor, 26). People need to make decisions dealing with the destruction of nature and the role acid rain plays in it. Acid rain destroys millions of forests and lakes (Taylor, 26 ). Studies show that acid rain is one of the largest contributing factors in the death of forests a...

Acid rain 10
Acid rain 10 Acid rain is exactly what it suggests- rain that is acidic. The definition of "acid rain" is rain with a pH of below 5.6. Rain becomes acidic because of gases that dissolve in the rain. Approximately 70% of acid rain is a result of dissolved sulfur dioxide (SO2) which forms Sulfuric Acid. The remaining 30% or so comes from various Nitrogen Oxides (mostly NO2 and NO3 which has collectedly adopted the mane Nox). There is also a small percentage of hydrochloric acid that makes...

Acid rain 12
Acid rain 12 Acid from the clouds Lake Barkevatn in Aust-Agder county used to have healthy stocks of trout and perch. As a result of acid rain, the trout stock died out in the mid-1970s and the perch stock at the beginning of the 1980s. � Precipitation that is polluted by sulphur dioxide (SO2) and nitrogen oxides (NOX) is known as acid rain. � Acidity is measured in pH units: the lower the pH, the more acidic the substance. Unpolluted rain has a pH of roughly 5.6, but t...

Abortions
Abortions To Whom It May Concern: My name is bubba smith, and I am a freshman male at the University of Florida. It has come to my attention that our wonderful state has done something terrible. That something is the allowance of abortions. What is an abortion you might ask? Well it is the termination of a pregnancy, or the killing of a baby, to be simply put. This issue has split our country for years, and I think that we as a state should step and make an example to the rest of the ...

Acetaminophen
Acetaminophen Acetaminophen In the late 1800�s it was discovered that papa-amino-phenol, could reduce fever, but the drug was too toxic to use. A less toxic extract called phenacetin was later found to be just as effective but also had pain-relieving properties. In 1949, it was learned that phenacetin was metabolized into an active but also less toxic drug, acetaminophen. Since then, acetaminophen has been sold under many over the counter brand names, most popular being Tylenol. ...

Achondroplasia
Achondroplasia ACHONDROPLASIA is known as being undersized, or less than 50in. in height. Having short limbs, a normal sized trunk, large head with a depressed nasal bridge and small face. This is a result of a disease in the thyroid gland. It can also be caused by Down syndrome or absorption, a cartilaginous tissue during the fetal stage. Hypochondroplasia, a mild form of dwarfism. Spinal tuberculosis and the deficiency of the pituitary gland secretions. Treatment with thyroxin or thyroid e...

Acid Rain 3
Acid Rain 3 Acid Rain Acid rain is caused by extra amounts of sulphur dioxide and nitrogen oxides. Natural sources of sulphur oxides and nitrogen oxides do exist, but are balanced by nature. Normal rain reacts with alkaline chemicals from the region's bedrock that are in the air, soils, lakes, and streams. This neutralizes the rain. However, if rain is more highly acidic, then the natural neutralizing chemicals can eventually become depleted. This is what is happening with more than 90%...

ALCOHOLISM A PSYCHOLOGICAL QUA
ALCOHOLISM A PSYCHOLOGICAL QUA "It discloses secrets; ratifies and confirms our hopes; thrusts the coward forth to battle; eases the anxious mind of its burthen; instructs in arts. Whom has not a cheerful glass made eloquent! Whom not quite free and easy from pinching poverty!" (Horace first century B.C.) Initially, I wanted to write this paper on substance related disorders. However, in reading the text I felt compelled to focus on the psycological effects and problems that ar...

ALCOHOLISM
ALCOHOLISM "It discloses secrets; ratifies and confirms our hopes; thrusts the coward forth to battle; eases the anxious mind of its burthen; instructs in arts. Whom has not a cheerful glass made eloquent! Whom not quite free and easy from pinching poverty!" (Horace first century B.C.) Initially, I wanted to write this paper on substance related disorders. However, in reading the text I felt compelled to focus on the psycological effects and problems that are related to alcohol...

AROMTHERAPY
AROMTHERAPY AROMATHERAPY Aromatherapy according to Aromatherapy by Anna Selby is derived from the ancient practice of using natural plant essences to promote health and well-being. It consists of the use of pure essential oils obtained from a wide assortment of plants, which have been steam distilled or cold-pressed from flowers, fruit, bark and roots. Aromatherapy is also the therapeutic use of aromatic substances. Therapeutic use covers both mind and body, whereas aromati...

Aandp kidney problems
Aandp kidney problems Jason�s case is not unmoral for children of his age. After taking into consideration all of his ailing factors and noted symptoms it is apparent that Jason is suffering from Glomerulonephritis. Glomerulonephritis is the term used for several related diseases that damage the Glomeruli, the tiny filtering units in your kidneys. Glomerulonephritis is associated with disorders in which your immune system attacks the Glomeruli. In a healthy kidney, blood passes throu...

A look at anemia related to nutritional issues
A look at anemia related to nutritional issues A LOOK AT ANEMIA RELATED TO NUTRITIONAL ISSUES TABLE OF CONTENTS INTRODUCTION.........................................................................................1 REVIEW OF LITERATURE......................................................................... METHODOLOGY........................................................................................ PRESENTATION AND ANALYSIS OF DATA.........................................

A medical and moral look at ectopic pregnancy
A medical and moral look at ectopic pregnancy The complexity of the human reproductive system is unbelievable baffling. The fact that the egg even leaves the protection of the ovary and starts its journey down the fallopian tube is remarkable. The process by which the sperm manage to scurry their way to meet the egg through the hostile environment of a woman�s body isanother great accomplishment of the human body. The fact that, in the majority of cases, the egg and sperm meet, join, and ...

ADHD ON INTELLIGENCE
ADHD ON INTELLIGENCE Running Head: ADHD ON INTELLIGENCE Social and Bio-genetic Influences of Attention-Deficit Hyperactivity Disorder on Child Intelligence The subject of Attention-Deficit Hyperactivity Disorder (ADHD) has undergone intense research in the past decade. Much of this is rooted in the fact that approximately 5% of children are affected with the disorder. Children with ADHD are identified as having increased behavioral difficulties because of excessive motor acti...

ADHD on Child Intelligence
ADHD on Child Intelligence Running Head: ADHD ON INTELLIGENCE Social and Bio-genetic Influences of Attention-Deficit Hyperactivity Disorder on Child Intelligence The subject of Attention-Deficit Hyperactivity Disorder (ADHD) has undergone intense research in the past decade. Much of this is rooted in the fact that approximately 5% of children are affected with the disorder. Children with ADHD are identified as having increased behavioral difficulties because of excessive moto...