[Type • Soil erosion includes using pesticides and fertilizer,

Type here     Do you believe humans are like a virusTo the planet earth?     Supervised By:Sanar Fawzi  Date: 9/1/2018Prepared By:Zainab NazarSoftware department 1st stageCONTENT  • Introduction  • Population  • Pollution  • Global warming • The ozone layer • Acid rain • Environment ( Deforestation , Industrialization )      INTRODUCTION  Humans are like a plague on the earth, they are threatening their own existence and other species by using the world’s resources, we all want to live peacefully, but we should know that some of the things we do cause danger to our lives.     POPULATION The term population has its origin the Latin word populous, meaning people. The human population is the total number of living humans on earth.Our global human population, 7.6 billion in 2017 and it keeps growing, overpopulation is when a population group passes the point at which the Environment can no longer supply the resources required to support the group’s needsRelated to fresh water, biodiversity and waste management.   POLLUTION: A SILENT KILLER Pollution is an unwanted change caused in air, water and soils by humans and human activities.The more people there are, the more resources they use, and the more pollution that results which effects the lives of millions of people and causesseveral deaths and health problems.?Types of pollution: • Air pollution • Soil pollution • Water pollution• Noise pollution• Radiation pollution• Thermal pollution                                       Pollution• Energy to heat and cool our homes and buildings and to run cars and equipment. • Waste takes on many forms from sewage to trash, some waste is spewed into the atmosphere or into water ways and so the result is air and water pollution, air pollution is due to increased fossil fuel emissions from vehicles. • Fossil fuels for automobiles require all humans to develop alternative forms of transportation. • Burning coal for electricity will continue to increase the amount of greenhouse gases in the atmosphere. • Soil erosion includes using pesticides and fertilizer, altering ecosystems in negative ways, we are losing soil by building, farming and stripping forests therefore soil is becoming depleted and desertification is occurred. And with using all those resources and so on, more pollution results. GLOBAL WARMING Average increase in the temperature of the atmosphere, which can contribute to changes in global climate patterns, it can be defined as changes in the global environment (including alterations in climate, land productivity, oceans or other water resources, atmospheric chemistry and ecological systems) that may alter the capacity of the earth to sustain life.   Impact of increasing CO2 levels in the atmosphere: • Increased photosynthesis and productivity by the earth’s vegetation. • Decrease plant production also means decreased respiration. • Elevated CO2 means an increase in global temperature – the greenhouse effect • Increased average surface temperature of the earth by about 0.6degree + 0.2degree C. • This increase in earths average temperature is called Global warming • A warmer earth may lead to changes in rainfall patterns, a rise in sea level and a wide range of impacts on plants, wildlife and humans.           THE OZONE LAYER The ozone layer is a thin, fragile shield that contains relatively high concentration of Ozone. It shields the entire earth from much of the harmful UV radiation that comes from the sun, damage in the Ozone layer means harmful rays entering to the atmosphere. • In the 1970s, the scientists discovered that the ozone layer is being depleted.   Effects of Ozone depletion on Humans: The effect of ozone depletion is the increased UV-Bradiation reaching earth surface.Effects on humans:1. Sunburn 2. Sun-damaged skin3. Cataracts4. Snow blindness5. Skin cancer                                        Effects of Ozone depletion on Environment Effects on environment:1. Global warming2. Climate change3. Crop and forest damage4. Infections and skin diseases on animals On animals:1. Less ocean plankton2. Less fish harvest                                              ACID RAIN Acid rain is rain that is more acidic than normal, it releases toxic metals into forests that stunts the growth of trees, acid rains spread and damage involves weather, chemistry, soil and the life cycles of plants and animals on the land and from acid in the water.• Sulfur dioxide and nitrogen oxides, are the major sources of acid rain. CAUSES OF ACID RAIN:ACID RAIN Acid rain is slowly destroying our planet. • Acid rain causes extensive damage to building, statues, bridges and structural materials of marble, lime, stone and etc…                            • Acid rain causes death of the whole tree                 • On water animals                       • Acid rain effect on human health The sulfur dioxide and nitrogen oxide gases, Causes respiratory diseases like (asthma, chronic, bronchiectasis and etc…)       Tiny particles cause difficulty in breathing for humans and animals & also lead to permanent lung damage   ENVIRONMENT The term “environment” means total surroundings of an organism, it can be living and non-living things.The quality of human life directly related to the quality of environment.Human activities on environment including:Deforestation means removing a large scale of forest, or an area of trees in order to clear the area for human development.Also, industrialization have impact on our planet:• Dangerous chemicals entering underground water• Ecological imbalance• Release of pollutant gases• Release of radioactive rays causing health problems• Reduced vegetationABSTRACT In this article, we talked about human impact on earth and the negativity of their activities on the environment.  “There is enough in the world for everyone’s need, but not enough for everyone’s greed”- Mahatma Gandhi                            References • Khitoliya, R.K., 2004. Environmental pollution: Management & control for sustainable development. S. Chand.  • Mills, N.L., Donaldson, K., Hadoke, P.W., Boon, N.A., MacNee, W., Cassee, F.R., Sandström, T., Blomberg, A. and Newby, D.E., 2009. Adverse cardiovascular effects of air pollution. Nature clinical practice Cardiovascular medicine, 6(1), pp.36-44. • Brunicardi, F., Andersen, D., Billiar, T., Dunn, D.L., Hunter, J.G., Matthews, J.B. and Pollock, R.E., 2014. Schwartz’s Principles of Surgery, 10e. McGraw-Hill.17