Edexcel IGCSE Geography 复习笔记 4.2.2 Informal Employment Causes of Informal Employment Informal employment is any employment which is unregulated and unofficial It is estimated that more than 60%...
Formation of Sugars Monosaccharides can join together via condensation reactions to form disaccharides A condensation reaction is one in which two molecules join together via the formation of a new...
Edexcel IGCSE Geography 复习笔记 4.2.1 Impacts of Economic Sectors Case Study: Sector Shift in the UK The UK is in the post-industrial stage of the Clark-Fisher model It was the first country to ex...
Edexcel IGCSE Geography 复习笔记 4.1.3 Changes in Economic Sectors Causes of Change As countries develop the numbers of people employed in each economic sector changes This can be seen in the Clark...
Edexcel IGCSE Geography 复习笔记 4.1.2 Location of Economic Sectors Factors Influencing Location of Economic Sectors Every type of economic activity has a particular location The location is affect...
Edexcel IGCSE Geography 复习笔记 4.1.1 Classification of Economic Sectors & Employment The Four Economic Sectors An economic activity is the producing, purchase or selling of goods and services...
Edexcel IGCSE Geography 复习笔记 3.3.3 Planning Long Term Risk Assessments & Hazard Mapping Long Term Planning Occurs after the hazard event Looks back at the event and evaluates what could be ...
Edexcel IGCSE Geography 复习笔记 3.3.2 Response to Earthquakes Short-term Response & Relief The emergency response are the actions taken immediately after a hazard event such as an earthquake: ...
Edexcel IGCSE Geography 复习笔记 3.3.1 Preparing for Earthquakes Warning & Evacuation Accurate prediction of earthquakes is not currently possible but monitoring is Many different methods of mo...
Properties of Water NOS: Use theories to explain natural phenomena; the theory that hydrogen bonds form between water molecules explains the properties of water When scientists observe natural phen...
Edexcel IGCSE Geography 复习笔记 3.2.3 Impacts of Natural Hazards Impacts of Natural Hazards Natural hazards are when they affect people; they have both short and long term impacts Short & Long...
Hydrogen Bonds Hydrogen bonding plays an important role between many biological molecules Some key functions include: Dissolving of solutes in water The cohesion and adhesion of water molecules The...
