Scroll down this page to see steps on how to download this material immediately on any device automatically.
Chapter 1-5 Research Project Material For Micro Biology Students
Topic: Safety and Damage Associated With Water
BACKGROUND OF STUDY
Water (H2O) is a transparent fluid which forms the world’s streams, lakes, oceans and rain, and is the major constituent of the fluids of organisms(Shiff, 2009). As a chemical compound, a water molecule contains one oxygen and two hydrogenatoms that are connected by covalent bonds. Water is a liquid at standard ambient temperature and pressure, but it often co-exists on Earth with its solid state, ice; and gaseous state, steam (water vapor)(Chandiwana. 2006). It also exists as snow, fog, dew and cloud.
Water covers 71% of the Earth’s surface. It is vital for all known forms of life. On Earth, 96.5% of the planet’s crust water is found in seas and oceans, 1.7% in groundwater, 1.7% in glaciers and the ice caps of Antarctica and Greenland, a small fraction in other large water bodies, and 0.001% in the air as vapor, clouds (formed of ice and liquid water suspended in air), and precipitation(Shiff, 2009). Only 2.5% of this water is freshwater, and 98.8% of that water is in ice (excepting ice in clouds) and groundwater(Chandiwana. 2006). Less than 0.3% of all freshwater is in rivers, lakes, and the atmosphere, and an even smaller amount of the Earth’s freshwater (0.003%) is contained within biological bodies and manufactured products. A greater quantity of water is found in the earth’s interior.
Water on Earth moves continually through the water cycle of evaporation and transpiration (evapotranspiration), condensation, precipitation, and runoff, usually reaching the seaShiff, C.J. 2009. Evaporation and transpiration contribute to the precipitation over land. Water used in the production of a good or service is known as virtual water.
Safe drinking water is essential to humans and other lifeforms even though it provides no calories or organicnutrients(Garfield2003). Access to safe drinking water has improved over the last decades in almost every part of the world, but approximately one billion people still lack access to safe water and over 2.5 billion lack access to adequate sanitation(Shiff, 2009). There is a clear correlation between access to safe water and gross domestic product per capita. However, some observers have estimated that by 2025 more than half of the world population will be facing water-based vulnerability.A report, issued in November 2009, suggests that by 2030, in some developing regions of the world, water demand will exceed supply by 50%.(Garfield2003) Water plays an important role in the world economy, as it functions as a solvent for a wide variety of chemical substances and facilitates industrial cooling and transportation. Approximately 70% of the freshwater used by humans goes to agriculture(Shiff, 2009).
CLICK THE “DOWNLOAD NOW” BUTTON ABOVE TO PURCHASE AND DOWNLOAD CHAPTER 1-5 COMPLETE MATERIAL. FOR NEWBIE FOLLOW THESE STEPS BELOW.
HOW TO DOWNLOAD THIS COMPLETE PROJECT MATERIAL CHAPTER1-5
You don’t need to go to the bank to pay and contact anyone to send you this material, because you can get it immediately while you are at home, school or office on any device with the use of your ATM card e.g Master, Verve and visa.
Click the “Download Now Button” above
In the next page you will be asked to fill your info and click the “Make Payment Button”.
Note, If you already have an account with us please login and continue. But if you don’t, please fill up your info to create an account and click the “Make Payment Button”.
Then, you will be asked to choose which card you really want to use for the purchase . It can be your Master, Verve, Visa card. After choosing the card you want to use for the purchase, you will be asked to put down your mail to get your purchase receipt. And after putting your mail, Click Make Payment Button.
After Clicking MAKE PAYMENT you will be asked to put down your card details and click PAY.
- After clicking PAY, click send OTP code. You will receive an OTP code from your bank to your phone number for verification. Make sure you text in the code that was sent to you correctly and click submit code.
- Once the transaction is successfully complete, you will be redirected to your dashboard where the link to download the material immediately will appear to you. Note you can also Re-download your material you paid for through your account dashboard on any device.
You can also click this Full Guide with images to assist you on how to purchase and download any material.