Edexcel IGCSE Geography 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 ...
