Carbon Cycle

Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon atoms are recycled through the Earth's ecosystems, including the atmosphere, oceans, soil, and living organisms.

Front

What are fossil fuels?

Back

Fossil fuels are natural substances formed from the remains of ancient plants and animals, primarily composed of carbon, and are used as energy sources.

Front

What happens to carbon levels if plant populations decrease?

Back

If plant populations decrease, the amount of carbon in the atmosphere would increase because fewer plants are available to absorb carbon dioxide through photosynthesis.

Front

What process removes carbon dioxide from the atmosphere?

Back

Photosynthesis removes carbon dioxide from the atmosphere as plants convert it into glucose and oxygen using sunlight.

Front

What is respiration in the context of the carbon cycle?

Back

Respiration is the process by which living organisms convert glucose and oxygen into energy, releasing carbon dioxide back into the atmosphere.

Front

What is the significance of decomposers in the carbon cycle?

Back

Decomposers break down dead organic matter, returning carbon to the soil and atmosphere, which is essential for nutrient cycling.

Front

What is the role of combustion in the carbon cycle?

Back

Combustion is the process of burning fossil fuels, which releases carbon dioxide into the atmosphere, contributing to climate change.

Front

What does it mean that carbon atoms cannot be created or destroyed?

Back

This means that during chemical reactions, carbon atoms are simply rearranged, but their total number remains constant, illustrating the law of conservation of mass.

Front

How do human activities impact the carbon cycle?

Back

Human activities, such as burning fossil fuels and deforestation, increase carbon dioxide levels in the atmosphere, disrupting the natural balance of the carbon cycle.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen.