Edexcel IGCSE Biology 复习笔记 4.4.3 Deforestation
Edexcel IGCSE Biology 复习笔记 4.4.3 Deforestation Deforestation Deforestation is the clearing of trees (usually on a large scale) If trees are replaced by replanting it can be a sustainable...
IB DP Maths: AA HL复习笔记2.6.2 Reflections of Graphs
What are reflections of graphs? When you alter a function in certain ways, the effects on the graph of the function can be described by geometrical transformations For a reflection: the graph is fl...
IB DP Maths: AA HL复习笔记2.6.1 Translations of Graphs
What are translations of graphs? When you alter a function in certain ways, the effects on the graph of the function can be described by geometrical transformations For a translation: the graph is ...
Edexcel IGCSE Biology 复习笔记 4.4.2 Greenhouse Gases
Edexcel IGCSE Biology 复习笔记 4.4.2 Greenhouse Gases Greenhouse Gases A greenhouse gas is a gas that absorbs infrared radiation from the Sun so it remains trapped in the Earth’s atmosphere ...
Edexcel IGCSE Biology 复习笔记 4.4.1 The Effects of Pollution
Edexcel IGCSE Biology 复习笔记 4.4.1 The Effects of Pollution The Effects of Pollution Human population growth globally has been increasing exponentially for the last 150 years ...
IB DP Maths: AA HL复习笔记2.5.1 Reciprocal & Rational Functions
What is the reciprocal function? What are the key features of the reciprocal graph? The graph does not have a y-intercept The graph does not have any roots The graph has two asymptotes The graph do...
Edexcel IGCSE Biology 复习笔记 4.3.2 The Nitrogen Cycle
Edexcel IGCSE Biology 复习笔记 4.3.2 The Nitrogen Cycle The Nitrogen Cycle Nitrogen as an element is required to make proteins Neither plants nor animals can absorb it from the air as N2 gas...
Edexcel IGCSE Biology 复习笔记 4.3.1 Water Cycle & Carbon Cycle
Edexcel IGCSE Biology 复习笔记 4.3.1 Water Cycle & Carbon Cycle The Water Cycle Water molecules move between various locations – such as rivers, oceans and the atmosphere – by specific p...
Edexcel IGCSE Biology 复习笔记 4.2.3 Food Pyramids & Transfer of Energy
Edexcel IGCSE Biology 复习笔记 4.2.3 Food Pyramids & Transfer of Energy Food Pyramids A pyramid of numbers shows how many organisms we are talking about at each level of a food chain. Th...
