Pollution Well, I chose to talk about pollution, I 'll start with presenting my thesis, which will be the main focus through this presentation. Slide 1 What is pollution? What is pollution? Pollution is defined as introduction of harmful or poisonous substances into the environment. Pollution is caused by humans or human activity and is a problem for the earth and the life on earth. And we have several types of pollution. There are 5 different main types of pollution. Slide 2 Types of pollution The worst form of pollution is air pollution. Air pollution is when we release harmful or poisonous gases, generally climate gases, to the atmosphere. This happens when we for example drive a car. The car will release CO2, which will be added to the …show more content…
The accident in Chernobyl in 1986 is a good example of an accident that lead to emissions of radioactive substances. A malfunction in the nuclear plant was the reason to the emission of these radioactive gases. Long term consequences may be health problems such as lung cancer, skin cancer and thyroid cancer, along with birth defects and cognitive disabilities. Noise pollution is defined as the disturbing noise that may harm the activity or balance of human or animal life. Mainly caused by machines, transport and transportation systems. It affects both health and behavior. Effects of unwanted sound may be hearing loss, tinnitus, hypertension, sleep disturbance as well as other harmful effects. Slide 3 – The greenhouse effect: The greenhouse effect is very important for the earth, and increased greenhouse effect is most likely caused by pollution. Without the greenhouse effect the Earth would have an average temperature at minus eighteen degrees. The sun sends energy to the Earth some of this energy gets absorbed and heats up. Greenhouse gases, such as carbon dioxide and Methane, make a layer around the earth, called the ozone layer. The ozone layer trap heat
The energy that comes from solar radiation, as well as heat transfer, create energy which in turn creates temperature. Chapter 3- Temperature : All The temperatures around the world occur because of many reasons.
The pros for the methane hydrate divide into 3 part. First,Methane hydrates have great amount in seabed. “Estimates suggest that there is about the same amount of carbon in methane hydrates as there is in every other organic carbon store on the planet,” Methane Hydrates have a huge reserve on the edge of continental shelves where the seabed drops sharply away into the deep ocean floor. It can be the alternative energy to lower the consumer of the coal and oil.
1. Introduction Air pollutin is a public health concern and it has been since the discovery of fire. Incidents and episodes of air pollution have been recorded throughout the history. Air pollution is divided into two, it is the indoor air pollution and the outdoor air pollution. Indoor air pollution is produced in households or at offices by pollutants such as tobacco smoke, household products or pesticides.
By releasing this gas into the air the natural greenhouse gases increase and cause many effects to happen. Carbon dioxide is also caused by removing natural resources from the land for agriculture. When the Earth starts to warm many other things do to, the ocean will become more acidic and glaciers might partially melt. If the oceans become acidic, fish and other sea creatures will have an unlivable environment. If glaciers start to melt arctic animals that rely on the ice may start to become extinct.
So What Causes It? Global warming occurs when greenhouse gases, such as carbon dioxide, nitrous oxide, and methane trap heat inside the earth 's atmosphere. Think about what happens when you open your car door after the windows have been rolled up on a hot day.
Pollution may be a threat, but it can be solved in our
These gases retain heat on earth thus increasing the temperature above average. Different gases have dissimilar abilities to trap heat. Deforestation is also another important reason for global warming. Plants release oxygen and take in carbon, thus providing us a clean and healthy environment. But by deforesting the lands, the trees would emit the carbon stored in them from hundreds of years making the air impure.
All of the greenhouse gases contribute to the atmosphere trapping heat and warming the earth and warming the Earth has many effects. The earth being warmed, meaning from North Pole to South Pole, melts ice in the poles. The melting of the ice causes sea levels to rise and the effect of that is flooding and lost habitat for animals. Increase in temperature makes some of population of plant and animal species go down. Increase in temperature also affects the weather.
The most intense greenhouse effects include water vapors, carbon dioxide, methane and nitrous oxide. Moreover, the other chemicals such as CFC also contribute to the green house effects. It should be noted that the absorbed energy from the atmosphere by the earth directly increase the surface temperature. The Earth only has the tendency to absorb and maintain 33 degree Celsius temperature, and rapid increase lead to destruction of the human life on Earth.
Castil, Czarina Beata N.11-HA1 Informative Speech Outline Topic: Air pollution Specific Purpose: I will inform where air pollution takes place, how it affects us economically and how we can help keep the air cleaner. I. Introduction a. Attention Material: Breathe in. Now, breathe out.
Pollution is the introduction or release of substances or energy that decrease the quality of the marine environment. Many pollutants are toxic of harmful to marine life (Castro and Huber, 2010). South Africa is known around the world for being one of the most diverse marine environment in the world, with 83% of the known fish families residing in South Africa (Van der Elst, 2007). There are also many marine species that are endemic to South Africa, which means they are only found in South Africa. Almost 30% of the South African population lives on the coastline (Taljaard et al. 2006), which has led to the urbanization of the coastlines and which then led to the industrialization of these areas.
One of the greatest issues that we face towards the environment has been an increasingly difficult problem over the last few years. Earths climate is changing at rapid paces and solutions are needed as quickly as possible to replenish natural ecosystems and cultures that depend on the environment. Climate change not only affects the animals in our ecosystem, but us humans as well. With the human population increasing every year, climate change is only getting worse. Many argue that the effects of climate change towards the environment are due to other extraneous factors, however, I myself am a strong believer that the problems such as rising sea levels, warmer temperatures and natural disasters are all due to both natural causes and human activity.
A very good morning to my lecturer Madam Rokiah and my beloved friends. Today I would like to deliver a speech on ‘Water Pollution’. Life is dependent on water, and without water no form of life can survive. But it is hard to believe that even after knowing such a fundamental truth, how people can turn a blind eye to water pollution. Every year thousands and thousands of people, especially children, fall prey to water-borne diseases, and nearly half of them die.
• Pollution: Pollution of air, water and soil require millions of years to recoup. Industry and motor vehicles exhaust are the number one pollutants. Heavy Metals, nitrates and plastic are toxins for pollution. While water pollution is caused by oil spill, acid rain, urban runoff; air pollution is caused by various gases and toxins
There are many different types of air pollutants that are introduced into the air such as carbon monoxide, sulfur dioxide and, nitrogen dioxide. Moreover, pollutants fall under the two categories: primary pollutants and secondary pollutants. Primary pollutants are gases or particles like intentionally emitted from human behavior, for example: vehicles exhausts emit