This is an animated PowerPoint presentation that covers the modern agriculture section of 4.2 Human Influences on the Environment of the Edexcel IGCSE Biology course.
The PowerPoint covers the following questions:
How can you increase the yield of certain crops using glasshouses and polythene tunnels? How does increased carbon dioxide and increased temperature in glasshouses affect crop yield? How is fertiliser used to increase crop yield? Why is pest control important? What are the advantages and disadvantages of using pesticides and biological control with crop plants? Can you explain the methods used to farm large numbers of fish? You should understand how the following factors are controlled; water quality maintenance, intraspecific and interspecific predation, disease, removal of waste products, quality and frequency of feeding, as well as how selective breeding is used.
The PowerPoint is designed to directly address each relevant point in the syllabus. It is simple and straight to the point covering the topic in just the right amount of detail.
It's a fantastic resource for both teachers and students or a great tool for revision.
Many of the slides have animations in that will only work when viewed in slideshow mode, so please use that when working through the presentation.