Lesson 4.7.1.2
4.7.1.2 Abiotic factors Quiz: AQA Combined Science, Unit 7
20 questions
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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.
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The 20 questions
-
Which is an abiotic factor?
- availability of food
- new predators
- new pathogens
- light intensity
-
Which pair of factors represents soil-related abiotic components of an ecosystem?
- temperature and wind
- roots and worms
- pH and minerals
- bacteria and fungi
-
Which abiotic factor is listed in the specification for plants?
- availability of food
- new predator types
- carbon dioxide levels
- new pathogen types
-
Which abiotic factor matters for aquatic animals?
- number of predators
- pathogen load
- competitor species
- oxygen levels
-
Which two properties of wind are classed as abiotic factors?
- velocity and mass
- speed and humidity
- pressure and temperature
- intensity and direction
-
Which of the following is classified as a biotic factor rather than an abiotic factor?
- new predators
- soil moisture
- light intensity
- ambient temperature
-
A forest's soil becomes more acidic. Which factor has changed?
- number of predators
- new pathogens
- availability of food
- soil pH
-
What does the biological term 'abiotic' translate to?
- single-celled
- photosynthetic
- parasitic
- non-living
-
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
-
Falling soil moisture levels in a grassland habitat will most likely cause what?
- increased root rot
- rapid canopy growth
- plant stress
- accelerated germination
-
Wind direction shifts and seeds are blown to new sites. Which factor is involved?
- pathogens
- competition
- predation
- wind
-
Soil becomes more acidic and a fungus species cannot survive. What is the factor?
- soil pH
- biotic competition
- a new predator
- a pathogen
-
A graph plotting plant abundance against light intensity demonstrates the effect of what?
- genetic mutation rate
- interspecific competition
- an abiotic factor
- a biotic factor
-
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
-
What is the likely effect on plant growth if carbon dioxide levels increase in bright sunlight?
- decreased growth
- stopped photosynthesis
- increased growth
- immediate wilting
-
In summer a lake's oxygen level falls. Which group is most affected?
- bacteria only
- terrestrial plants
- fungi
- aquatic animals
-
Which term describes a non-living factor that can affect a community?
- Trophic level
- Biotic factor
- Abiotic factor
- Population factor
-
Which abiotic factor causes a fall in plant population when its level drops in soil?
- carbon dioxide
- wind direction
- light intensity
- mineral content
-
What determines how a specific community responds to an abiotic environmental change?
- species and conditions
- random chance
- geographic area
- population age
-
Which graph type best shows how a temperature change affects population size over time?
- line graph
- scatter graph
- bar chart
- pie chart
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