What is Cleanliness? Since the germ theory of disease, cleanliness has come to mean an effort to remove germs and other hazardous materials. A reaction to an excessive desire for a germ-free environment began to occur around , when David Strachan put forth the "hygiene hypothesis" in the British Medical Journal. In essence, this hypothesis holds that dirt plays a useful role in developing the immune system; the fewer germs people are exposed to in childhood, the more likely they are to get Cleanliness of body is necessary for physical health.
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This rise of renewable and clean energy in china has come with a hefty price. With this increase of clean energy China is also reducing their use of coal and trying to get more coal plants to clean the coal so that there will not. Clean Energy or Renewable Energy by definition is energy that is collected from resources which are naturally replenished on a human timescale. This includes wind, rain, tides, geothermal heat, waves, and most relevant to the project, sunlight. Non-renewable Energy is the exact opposite and are natural things such as crude oil, coal, natural gas, and tar sands that take thousands of years to replenish. These energies are the main source.
Why going green is most practical way to clean environment?
Clean it Up Clean up the earth , so it could be a sparkling clean place for us all! Clean up the earth , so we can see the gorgeous blue and green on our planet. The blue and green will shine in our eyes if we clean it up.
The environment provides food and shelter to all the living organisms plants and animals. Keeping it clean and pollution-free ensures we have a steady supply of fresh air. However, water contamination, climate change, and pollution are degrading the environment at an alarming rate.