Unit 4: Carbon Cycle Flashcard

Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged between the Earth's atmosphere, land, water, and living organisms. It involves processes like photosynthesis, respiration, decomposition, and combustion.

Front

What role does photosynthesis play in the carbon cycle?

Back

Photosynthesis is a natural process that removes carbon dioxide from the atmosphere and converts it into organic matter, which is used by plants for growth.

Front

What is the lithosphere?

Back

The lithosphere is the rigid outer layer of the Earth, consisting of the crust and upper mantle, where most of the Earth's carbon is stored in rocks and fossil fuels.

Front

How does the hydrosphere interact with carbon?

Back

The hydrosphere, which includes all water bodies, absorbs and releases carbon dioxide between the atmosphere and water, playing a crucial role in the carbon cycle.

Front

What is respiration in the context of the carbon cycle?

Back

Respiration is a process by which living organisms convert organic matter back into carbon dioxide, releasing it into the atmosphere.

Front

What is the greenhouse effect?

Back

The greenhouse effect is the warming of the Earth's surface due to the trapping of heat by greenhouse gases, including carbon dioxide, in the atmosphere.

Front

What is the difference between the biosphere and the lithosphere in terms of carbon storage?

Back

The biosphere contains living organisms that actively use and release carbon, while the lithosphere stores carbon primarily in non-living forms, such as fossil fuels and rocks.

Front

What is combustion and how does it relate to the carbon cycle?

Back

Combustion is the process of burning organic materials, which releases carbon dioxide into the atmosphere, contributing to the carbon cycle.

Front

What is the role of volcanic eruptions in the carbon cycle?

Back

Volcanic eruptions release carbon dioxide and other gases from the Earth's interior into the atmosphere, affecting the carbon cycle.

Front

Why is the amount of each gas in the atmosphere important for understanding the greenhouse effect?

Back

Knowing the amount of each gas helps determine their contribution to the greenhouse effect and climate change, allowing for more accurate conclusions.