The diagram illustrates the process turning organic waste into fertilizer for gardening purpose.
Overall, there are four main steps occurred in a 2 m³ plastic container which is filled with air molecules.
In the first stage, daily waste such as newspaper, glass and food are thrown into the container to form various separated layers, 15 cm each. Subsequently, nitrogen and hot water are added. Cold water is not permitted since it doesn’t provide heat for the process. After having all the ingredients inside, the fermentation start with the heat maintained constantly for 6 months.
At the end, the waste become compost, where worms appeared on the surface. This substance is then used as environmentally friendly fertilizer in many family and industry.
In conclusion, despite its simple function and requirement, the process of creating garden fertilizer is considered as time consuming.
- The graphs below show the size of ozone hole over Antarctica an the production of three ozone damaging gases from 1980 to 2000 Summarise the information by selecting and reporting the main features and make comparisons where relevant 59
- The two maps below show an island before and after the construction of some tourist facilities Summarise the information by selecting and reporting the main features and make comparisons where relevant 61
- The graph below gives information from a 2008 report about consumption of energy in the USA since 1980 with projections until 2030 Summarize the information by selecting and reporting the main features and make comparisons where relevant 11
- Detailed description of crimes a newspaper and TV can have bad consequences on society So this kind of information should be restricted on media However some people think it provides useful information to help people stay alert What are the advantages and 84
- The bar chart below shows the information about the population size in an area of UK and its birth rate and death rate in 1700 1800 1900 ad 2000 Summarise the information by selecting and reporting the main features and make comparisons where revelant