Before revision: Pedology – The study of soils in their natural environment Geomorphology – The scientific study of landforms and the processes that shape them Spatial decision support systems – Computerised aid to land use decisions Global Navigation Satellite Systems (GNSS) – Various satellite navigation systems Hydrology – The science of applying engineering techniques to the properties of the earth 's water, especially its movement in relation to land.
After revision: Pedology – The study of soils in their natural environment Geomorphology – The scientific study of landforms and the processes that shape them Spatial decision support systems – Computerised aid to land use decisions Global Navigation Satellite Systems (GNSS) – Various satellite navigation systems Hydrology – The science of applying engineering techniques to the properties of the Earth 's water, especially its movement in relation to land.