Edexcel IGCSE Geography 复习笔记 1.3.3 Flooding - Causes & Control Causes of Flooding Flooding occurs when the capacity of the river channel is exceeded The water flows over the banks and onto ...
Edexcel IGCSE Geography 复习笔记 1.3.2 Water Quality & Supply Variations in Water Quality Clean, potable water is essential for human consumption, irrigation and for livestock Approximately one...
Practical 1: Using a Microscope Many biological structures are too small to be seen by the naked eye Optical (light) microscopes are an invaluable tool for scientists as they allow for tissues, cel...
Edexcel IGCSE Geography 复习笔记 1.3.1 Water Uses, Demand & Supply Water Uses Only 2.5% of the water on Earth is freshwater 68.7% of freshwater is stored in glaciers and ice sheets and 30% is g...
Edexcel IGCSE Geography 复习笔记 1.2.3 River Landscapes Upland Landforms River landscape characteristics The changes in river channel characteristics, lead to changes in the river landscape The upl...
Edexcel IGCSE Geography 复习笔记 1.2.2 Changes in River Characteristics Changes in River Characteristics River characteristics All rivers have a long and cross profiles Each river's long and cross ...
Edexcel IGCSE Geography 复习笔记 1.2.1 Fluvial Processes Weathering & Mass Movement River valley processes Both fluvial and landscape processes shape the river and surrounding land in the drain...
Stem Cells A stem cell is a cell that can divide (by mitosis) an unlimited number of times Each new cell (produced when a stem cell divides) has the potential to remain a stem cell or to develop in...
Edexcel IGCSE Geography 复习笔记 1.1.3 River Regime & Hydrographs River Regimes & Storm Hydrographs River regimes The discharge of a river changes over time The river regime is a record of ...
