Stefano's

• Water pollution is the contamination of rivers, oceans and lakes
• Air pollution is when harmful gases or fumes are intoduced into the atmosphere
• Soil pollution is when there are changes in the soil caused by the adding harmful, unwanted materials  
  
• Noise pollution is an unpleasant and continous noise in a particular area
• Light pollution is the excessive and prolonged use of artificial lights

• One of the greatest causes of  air pollution is the burning of fossil fuels such as coal and gases
• A lot of water pollution comes from human activity. Some human causes include sewage, waste water and chemicals from factories and rubbish from people littering. 
• Soil pollution is caused by dumping harmful materials into the soil such as:
• Trash, including plastic bags and bottles
• Debris like cement and bricks
• Metal from old cars or building materials
• Light pollution is caused by using too much artificial lighting for a long period of time

Conservation is the protection of things found in nature

• we can reduce rubbish by making a compost heap and sorting into materials to be recycled 
• we can use less water by having showers rather than baths and turning off the taps when not in use
• We can use less power by not switching on lights during the day, switch off the computer, tv or radio if you are not using it and using bulbs that use less watts
• We can make our pets eco friendly by picking up their buisness in eco friendly poo bags and placing it in a special bin and keeping cats indoors at night so they do not eat other animals

• Pollution is the introduction of contaminants into the natural environment that causes a negative effect.