Summary
Keywords
Full Transcript
🎓 IGCSE Biology - The Complete Course: https://www.tes.com/teaching-resource/resource-12989155 IGCSE Chemistry - The Complete Course: 🎓 Complete Teaching Resource (including past exam questions and mark schemes organised by chapter): https://www.tes.com/teaching-resource/resource-13280954 🎓 Student resource (PDF only): https://www.tes.com/teaching-resource/resource-13245244 🎓 All the videos (the complete library on Patreon): https://www.patreon.com/igbiocomplete ☕️ Buy me a coffee - https://www.buymeacoffee.com/ArthurJohnParker Cambridge IGCSE Biology (0610/0970) Chapter 20 - Human influences on ecosystems Topic 20.1 - Food supply For exams from 2025 (core and extended) As always this video follows the Cambridge syllabus exactly and contains absolutely everything you need to know for your final exam! My other channels: @igpecomplete - Cambridge IGCSE PE @ocrpecomplete - OCR GCSE PE Timestamps: 0:00 Contents 0:30 How humans have increased food production 2:10 Monocultures of crop plants 3:05 Intensive livestock production Core content: - Describe how humans have increased food production, limited to; (a) agricultural machinery to use larger areas of land and improve efficiency, (b) chemical fertilisers to improve yields, (c) insecticides to improve quality and yield, (d) herbicides to reduce competition with weeds, (e) selective breeding to improve production by crop plants and livestock. - Describe the advantages and disadvantages of large-scale monocultures of crop plants. - Describe the advantages and disadvantages of intensive livestock production. There's no extended supplement for this lesson.
Continue this lesson in the app
Install CourseHive on Android or iOS to keep learning while you move.
