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HomeCIE IGCSE BiologyHuman Influences on Ecosystems
CIE · IGCSE · Biology

Human Influences on Ecosystems
Practice Questions

6 CIE IGCSE Biology questions on Human Influences on Ecosystems, each with instant feedback and a full examiner-style mark scheme.

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✨ Revision guide includes key terms, worked examples and exam technique for Human Influences on Ecosystems.

Try 2 sample questions on Human Influences on Ecosystems

Question 1 · 1 mark · Difficulty 1/3

What is deforestation?

  1. Planting trees
  2. Large-scale removal of trees, causing habitat destruction, soil erosion, flooding, and increased CO₂
  3. A natural forest fire
  4. Sustainable forestry
Show answer & explanation
✓ Answer: BLarge-scale removal of trees, causing habitat destruction, soil erosion, flooding, and increased CO₂
Deforestation removes habitats (reducing biodiversity), releases stored carbon (climate change), removes roots (soil erosion), and reduces water absorption (flooding).
Question 2 · 1 mark · Difficulty 1/3

What is the greenhouse effect?

  1. Plants growing in greenhouses
  2. Greenhouse gases (CO₂, methane) trapping heat in the atmosphere, warming Earth
  3. Ozone depletion
  4. Acid rain
Show answer & explanation
✓ Answer: BGreenhouse gases (CO₂, methane) trapping heat in the atmosphere, warming Earth
The natural greenhouse effect keeps Earth warm enough for life. Enhanced greenhouse effect from human activity (burning fossil fuels, farming) causes global warming.
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CIE IGCSE Biology: Human Influences on Ecosystems FAQ

How many CIE IGCSE Biology questions on Human Influences on Ecosystems are there on Kramizo?
Kramizo currently has 6 exam-board-aligned practice questions on Human Influences on Ecosystems for CIE IGCSE Biology, with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real CIE paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for CIE IGCSE students preparing for Biology?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Human Influences on Ecosystems practice with other Biology topics or even switch to a totally different CIE subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Human Influences on Ecosystems questions aligned to the official CIE IGCSE Biology syllabus?
Every question is written against the published CIE IGCSE Biology specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CIE paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CIE.
How is Human Influences on Ecosystems typically tested on CIE IGCSE Biology papers?
Human Influences on Ecosystems appears across multiple question types on real CIE IGCSE Biology papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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