The Carbon Cycle and Human Influence

What is the primary role of photosynthesis in the carbon cycle?

• To absorb carbon dioxide and release oxygen

• To release carbon dioxide and absorb oxygen

• To convert glucose into carbon dioxide

• To store carbon in the soil

How do human activities primarily impact the carbon cycle?

• By increasing carbon dioxide emissions through burning fossil fuels

• By decreasing carbon dioxide levels through reforestation

• By enhancing carbon storage in oceans

• By reducing the need for photosynthesis

What is the effect of deforestation on the carbon cycle?

• It increases carbon dioxide levels in the atmosphere

• It decreases carbon dioxide levels in the atmosphere

• It enhances the carbon storage capacity of forests

• It has no impact on the carbon cycle

Which of the following acts as a carbon sink?

• Forests

• Fossil fuels

• Vehicles

• Plastic products

What is a key strategy to reduce human impact on the carbon cycle?

• Transitioning to renewable energy sources

• Increasing the use of fossil fuels

• Promoting deforestation

• Reducing photosynthesis

Why is it important to protect and restore ecosystems in the context of the carbon cycle?

• They act as carbon sinks, absorbing more carbon than they release

• They release more carbon than they absorb

• They have no effect on carbon levels

• They increase the carbon emissions from fossil fuels

What role does education play in addressing human impacts on the carbon cycle?

• It helps individuals make informed decisions about sustainable practices

• It increases carbon emissions

• It decreases the need for renewable energy

• It has no impact on the carbon cycle