Multiple Choice
How do zoning ordinances work to protect biodiversity?
113
views
48. Ecology
Introduction to Ecology
Multiple Choice
How might the collapse of the Carboniferous rainforests have affected Earth's carbon cycle?
A
It caused a rapid increase in oceanic carbon storage due to enhanced marine photosynthesis.
B
It reduced the rate of carbon sequestration, leading to increased atmospheric CO\(_2\) levels.
C
It increased the rate of photosynthesis globally, decreasing atmospheric CO\(_2\) levels.
D
It had no significant impact on the carbon cycle because rainforests were quickly replaced by deserts.
Verified step by step guidance1
Understand the role of rainforests in the carbon cycle: Rainforests act as major carbon sinks, meaning they absorb and store carbon dioxide (CO₂) from the atmosphere through the process of photosynthesis. This helps regulate atmospheric CO₂ levels.
Analyze the impact of the collapse of the Carboniferous rainforests: The collapse would have significantly reduced the amount of vegetation available to sequester carbon, thereby decreasing the rate of carbon sequestration (the process of capturing and storing atmospheric CO₂).
Consider the consequences of reduced carbon sequestration: With less carbon being absorbed by plants, more CO₂ would remain in the atmosphere, leading to increased atmospheric CO₂ levels.
Evaluate the other options provided: Enhanced marine photosynthesis or global increases in photosynthesis are unlikely to fully compensate for the loss of such a large terrestrial carbon sink. Additionally, the idea that the rainforests were quickly replaced by deserts suggests a lack of significant vegetation, which would further reduce carbon sequestration.
Conclude that the most plausible outcome of the collapse of the Carboniferous rainforests is a reduction in the rate of carbon sequestration, leading to increased atmospheric CO₂ levels.
Related Videos
Related Practice
