Edexcel IGCSE Biology: Double Science 復習筆記 5.1.2 Crop Plants: Increasing Yield Crop Plants: Fertilisers Modern technology has increased food supply substantially in two key ways: Fertili...
Finding Tangents to Polar Curves What is the gradient/tangent of a polar curve? Gradients (and tangents) are the same as using Cartesian coordinates i.e. a gradient of 1 in Cartesian coordinates is...
Edexcel IGCSE Biology: Double Science 復習筆記 5.1.1 Crop Plants: Glasshouses & Polythene Tunnels Crop Plants: Glasshouses & Polythene Tunnels If a plant is given unlimited light, ca...
Edexcel IGCSE Biology: Double Science 復習筆記 5.1.1 Crop Plants: Glasshouses & Polythene Tunnels Crop Plants: Glasshouses & Polythene Tunnels If a plant is given unlimited light, ca...
Edexcel IGCSE Biology: Double Science 復習筆記 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 Ear...
Edexcel IGCSE Biology: Double Science 復習筆記 4.4.1 The Effects of Pollution The Effects of Pollution Human population growth globally has been increasing?exponentially?for the last 150 yea...
Edexcel IGCSE Biology: Double Science 復習筆記 4.3.1 Water Cycle & Carbon Cycle The Water Cycle Water molecules move between various locations – such as rivers, oceans and the atmosphere...
Edexcel IGCSE Biology: Double Science 復習筆記 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 ...
Edexcel IGCSE Biology: Double Science 復習筆記 4.2.2 Food Webs Food Webs A?food web?is a network of interconnected food chains Food webs are more realistic ways of showing connections betwee...
