BI-688
Causes of global warming
Biology · Secondary 3 · Hard · Causes of global warming
A large area of tropical forest is cut down and not replanted. How does this mainly increase global warming over time?
- Fewer trees are available to remove carbon dioxide by photosynthesis, so more CO₂ stays in the atmosphere.
- Fewer trees respire, so less carbon dioxide is released into the atmosphere.
- The bare land absorbs less heat from the Sun, so the air above it becomes cooler.
- The soil releases more oxygen, which traps more heat in the atmosphere.
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