Origins and Store of Carbon on Earth (AQA A-Level Geography): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Why is carbon considered chemically versatile?
Why is carbon considered chemically versatile?
It forms 4 strong covalent bonds
What is a carbon sink?
What is a carbon sink?
A store absorbing more C than it releases
What is the chemical formula for methane?
What is the chemical formula for methane?
CH₄
Where did Earth's carbon originally come from?
Where did Earth's carbon originally come from?
The planet's interior/mantle
How much carbon is stored in fossil fuel deposits?
How much carbon is stored in fossil fuel deposits?
Approximately 4,100 GtC
What is the total amount of carbon stored in the oceans?
What is the total amount of carbon stored in the oceans?
Between 37,000 & 40,000 GtC
In all forests, what % of carbon is stored in biomass vs soil?
In all forests, what % of carbon is stored in biomass vs soil?
31% biomass, 69% soil
What was atmospheric CO₂ concentration before the Industrial Revolution?
What was atmospheric CO₂ concentration before the Industrial Revolution?
280 ppm
What forms when CO₂ dissolves in water during weathering?
What forms when CO₂ dissolves in water during weathering?
H₂CO₃ (carbonic acid)
How much larger is the soil carbon pool than the atmospheric pool?
How much larger is the soil carbon pool than the atmospheric pool?
3.1 times larger