Lesson 4.7.1.2

4.7.1.2 Abiotic factors Quiz: AQA Combined Science, Unit 7

20 questions

In partnership with Revision Ninja

Lesson 4.7.1.2, Abiotic factors: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 7: Ecology, written with Revision Ninja.

Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.

Host this setFree Play

The 20 questions

  1. Which is an abiotic factor?

    • availability of food
    • new predators
    • new pathogens
    • light intensity
  2. Which pair of factors represents soil-related abiotic components of an ecosystem?

    • temperature and wind
    • roots and worms
    • pH and minerals
    • bacteria and fungi
  3. Which abiotic factor is listed in the specification for plants?

    • availability of food
    • new predator types
    • carbon dioxide levels
    • new pathogen types
  4. Which abiotic factor matters for aquatic animals?

    • number of predators
    • pathogen load
    • competitor species
    • oxygen levels
  5. Which two properties of wind are classed as abiotic factors?

    • velocity and mass
    • speed and humidity
    • pressure and temperature
    • intensity and direction
  6. Which of the following is classified as a biotic factor rather than an abiotic factor?

    • new predators
    • soil moisture
    • light intensity
    • ambient temperature
  7. A forest's soil becomes more acidic. Which factor has changed?

    • number of predators
    • new pathogens
    • availability of food
    • soil pH
  8. What does the biological term 'abiotic' translate to?

    • single-celled
    • photosynthetic
    • parasitic
    • non-living
  9. A rise in lake temperature most directly causes which abiotic change for fish?

    • increased carbon dioxide
    • higher mineral content
    • reduced oxygen levels
    • greater light intensity
  10. Falling soil moisture levels in a grassland habitat will most likely cause what?

    • increased root rot
    • rapid canopy growth
    • plant stress
    • accelerated germination
  11. Wind direction shifts and seeds are blown to new sites. Which factor is involved?

    • pathogens
    • competition
    • predation
    • wind
  12. Soil becomes more acidic and a fungus species cannot survive. What is the factor?

    • soil pH
    • biotic competition
    • a new predator
    • a pathogen
  13. A graph plotting plant abundance against light intensity demonstrates the effect of what?

    • genetic mutation rate
    • interspecific competition
    • an abiotic factor
    • a biotic factor
  14. Light intensity drops in a forest and herb numbers decline. What is the likely limiting factor?

    • predator numbers
    • new competitors
    • light intensity
    • a fungal infection
  15. What is the likely effect on plant growth if carbon dioxide levels increase in bright sunlight?

    • decreased growth
    • stopped photosynthesis
    • increased growth
    • immediate wilting
  16. In summer a lake's oxygen level falls. Which group is most affected?

    • bacteria only
    • terrestrial plants
    • fungi
    • aquatic animals
  17. Which term describes a non-living factor that can affect a community?

    • Trophic level
    • Biotic factor
    • Abiotic factor
    • Population factor
  18. Which abiotic factor causes a fall in plant population when its level drops in soil?

    • carbon dioxide
    • wind direction
    • light intensity
    • mineral content
  19. What determines how a specific community responds to an abiotic environmental change?

    • species and conditions
    • random chance
    • geographic area
    • population age
  20. Which graph type best shows how a temperature change affects population size over time?

    • line graph
    • scatter graph
    • bar chart
    • pie chart

All AQA Combined Science quizzes