AP Biologyeasymcq1 pt
Which event would most increase atmospheric CO₂?
A.Burning fossil fuels
B.Reforestation
C.Ocean uptake
D.Limestone formation
Explanation
Core Concept
Combustion oxidizes carbon stored for millions of years, releasing it as CO₂ in decades — the dominant anthropogenic flux.
Correct Answer
ABurning fossil fuels
More Unit 8: Ecology practice questions
- mediumWhich measurement estimates the rate at which primary producers add chemical energy to new biomass after subtracting the energy they use in …
- mediumWhich pair is an example of coevolution in a community?
- mediumIn a population at K with stable size, births + immigration
- hardFire suppression in a fire-adapted ecosystem can lead to
- hardThe main reservoir of carbon in Earth's long-term carbon cycle is
Practice more AP Biology questions with full explanations
Practice Unit 8: Ecology Questions →