Soil is formed from the weathering of rocks and minerals. The surface rocks break down into smaller pieces through a process of weathering and is then mixed with moss and organic matter. Over time this creates a thin layer of soil. Plants help the development of the soil.
In NSW it is a different story. It provides guidelines to parents and says a child aged 10-12 years can be left for up to 12 hours but not between 10pm and 6am. They must have a back-up adult available and can look after one or two other smaller children.
Child Car Seat Laws. When riding in a vehicle, children under 4 years old must be properly secured in an approved safety seat. in the rear of the vehicle. The only time a child under 4 years old may ride in the front seat of a vehicle is if all other seats are occupied by children under 4 years old.