logo

Learning objective

Explain how humans have enhanced food production through various methods, including: (a) using agricultural machinery to cultivate larger areas and increase efficiency, (b) applying chemical fertilizers to boost crop yields, (c) utilizing insecticides to enhance both quality and yield, (d) employing herbicides to minimize weed competition, and (e) practicing selective breeding to enhance production in crops and livestock.

Read the explanation, check the common trap, then practise with flashcards and questions.

Exam focus

  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE BiologyHuman influences on ecosystemsCore content

Study support

Understand this objective

Quick explanation

Explain how humans have enhanced food production through various methods, including: (a) using agricultural machinery to cultivate larger areas and increase efficiency, (b) applying chemical fertilizers to boost crop yields, (c) utilizing insecticides to enhance both quality and yield, (d) employing herbicides to minimize weed competition, and (e) practicing selective breeding to enhance production in crops and livestock

  • This point belongs to Food supply, especially Food supply outcomes.
  • You need to be able to explain how humans have enhanced food production through various methods, including: (a) using agricultural machinery to cultivate larger areas and increase efficiency, (b) applying chemical fertilizers to boost crop yields, (c) utilizing insecticides to enhance both quality and yield, (d) employing herbicides to minimize weed competition, and (e) practicing selective breeding to enhance production in crops and livestock.
  • The key ideas to know are Describe.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Describe

Why it matters

This objective helps connect Food supply outcomes to exam-style questions, flashcards, and revision notes for Food supply.

Revision tools

Choose how to practise

Back to topic hub
Flashcards10 linked cards

Flashcard 1 of 10

Press Space to flip, arrows to move
Practice Questions7 linked questions

Question 1 of 7

Choose an answer, get feedback, then move sideways through the set.

0 of 5 attempted

Paper 3 structured question: Food supply

Paper 3Theory (Core)2 marks

Description

Using Agricultural Machinery

Farmers use machines such as tractors and combine harvesters to work on larger fields more quickly and efficiently.

  1. a

    Describe how using agricultural machinery helps increase food production.

    Aim for approximately 2 distinct marking points.

    [2]
Revision notestopic notes

Open the full topic revision notes when you are ready to review this objective in context.

Open revision notes

Related learning objectives

Revision hubs

Move back to a broader study route