Lesson 5.4.1
5.4.1 Evidence for climate change Quiz: Pearson Edexcel Biology, Unit 5
20 questions
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Lesson 5.4.1, Evidence for climate change: 20 multiple choice questions for the Pearson Edexcel Biology (9BI0), Unit 5: On the Wild Side, written with Revision Ninja.
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The 20 questions
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What evidence of past climate is directly obtained from air trapped in ice cores?
- Pollen grain shape
- Peat bog depth
- Carbon dioxide levels
- Tree ring width
-
What do pollen grains preserved in peat bogs reveal about past climate?
- Annual rainfall volume
- Historical wind speeds
- Past plant species
- Atmospheric pressure
-
What aspect of tree rings is measured in dendrochronology to indicate past climate?
- Ring colour
- Ring width
- Ring count only
- Bark thickness
-
Which source provides direct temperature measurements for recent climate change evidence?
- Tree ring width
- Peat bog pollen
- Instrumental records
- Ice core isotopes
-
Why does a correlation between carbon dioxide and global temperature not prove causation?
- Temperature precedes carbon
- Correlation lacks mechanism
- Data is qualitative
- Variables are constant
-
What evidence supports a causal link between carbon dioxide levels and global warming?
- Fossil pollen abundance
- Infrared absorption mechanism
- Historical correlation alone
- Increased tree rings
-
Why do scientists use multiple sources of evidence, such as ice cores and dendrochronology?
- Eliminates all error
- Decreases data volume
- Replaces physical testing
- Cross-validates findings
-
Why do scientists combine evidence from multiple sources to study past climate?
- Eliminate all error
- Increase reliability
- Prove causation
- Predict exact weather
-
Which source provides long-term historical data on atmospheric carbon dioxide levels?
- Tree bark rings
- Ice cores
- Ocean salinity
- Soil samples
-
What does finding pollen from cold-tolerant plant species in a peat bog layer indicate?
- Increased rainfall
- Higher atmospheric oxygen
- Colder past climate
- Warmer past climate
-
Why is claiming solar activity causes warming based solely on correlated records invalid?
- Records are inaccurate
- Correlation lacks causation
- Solar activity stops
- Temperature never changes
-
Which ratio measured in deep-sea sediment cores is used as a proxy for past temperature?
- Carbon isotopes
- Hydrogen isotopes
- Nitrogen isotopes
- Oxygen isotopes
-
How do current atmospheric carbon dioxide levels compare to historical ice core records?
- Highly variable
- Exactly identical
- Significantly lower
- Significantly higher
-
Why is data from a single weather station insufficient to prove global warming?
- Ignores ocean currents
- Reflects local weather
- Lacks sensor accuracy
- Measures wrong gases
-
What do narrow tree rings in a dendrochronology sample usually indicate?
- Warm summer temperatures
- Slow tree growth
- High annual rainfall
- Fast tree growth
-
What is the main advantage of using pollen counts alongside isotope analysis to study past climate?
- Prevents sample decay
- Replaces physical data
- Cross-validates findings
- Predicts future trends
-
What data is compared with temperature records to show climate change impacts on species?
- Enzyme optimum
- Mutation rate
- Species range
- Cellular respiration
-
What term describes an indirect measurement used to estimate past environmental conditions?
- Baseline record
- Proxy record
- Control record
- Direct record
-
Why are tree-ring samples cross-dated during dendrochronology studies?
- Measure soil nutrients
- Determine tree species
- Count total trees
- Match growth patterns
-
Why are atmospheric carbon dioxide levels measured in remote locations like Mauna Loa?
- Avoid local pollution
- Measure ocean depth
- Maximise sun exposure
- Reduce wind effects
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