... waste becomes immense. For every litre of water, there is 50mg of water pollution. This is 17 times higher than the limit. Organisms like fish have a slower rate of bacterial processing. It threatens rare species of fish, dolphins and soft-shell turtles. With something like 250 million litres of sewerage produced each day, and only the capacity to treat 100 million ... . Fifteen years later, little has been done. $600 million has been spent in attempts to help the state of the river; most was spent on inappropriate technology, like sewage treatment plants that require constant energy tha...

• Word Count: 250
• Approx Pages: 1
• Grade Level: High School

... or a hot house and is a building made out of glass or clear plastic. The purpose of a glasshouse is so plants can be grown in controlled conditions of heat, moisture, air and shade. A glasshouse works by trapping sunlight, which passes through the glass and warms the soil, air and plants inside. But the infra-red rays given off by the heated soil and ... plants cannot pass back out and get trapped inside, keeping the glasshouse warm, even over several days without sun. The temperature in a glasshouse can be ... heat, electricity, hot water pipes, special paraffin stoves or solar heatin...

• Word Count: 231
• Approx Pages: 1
• Grade Level: High School