TEST - Carbon Cycle

Front

What is the carbon dioxide-oxygen cycle?

Back

The carbon dioxide-oxygen cycle is a process where animals breathe in oxygen and release carbon dioxide, which is then used by plants for photosynthesis to produce oxygen.

Front

What do humans release when they exhale?

Back

Humans release carbon dioxide when they exhale.

Front

What has caused the average temperature of the Earth to increase by approximately 1°C in the past century?

Back

The increase in temperature is primarily due to higher levels of carbon dioxide and other greenhouse gases in the atmosphere.

Front

Why is carbon considered an important element for living things?

Back

Carbon is essential for life as it is a key component of organic molecules, including proteins, lipids, carbohydrates, and nucleic acids.

Front

What happens to carbon when humans burn fossil fuels?

Back

When humans burn fossil fuels, most of the carbon quickly enters the atmosphere as carbon dioxide.

Front

What role do plants play in the carbon dioxide-oxygen cycle?

Back

Plants take in carbon dioxide from the atmosphere and use it during photosynthesis to produce oxygen.

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.

Front

What are greenhouse gases?

Back

Greenhouse gases are gases that trap heat in the atmosphere, contributing to the greenhouse effect; examples include carbon dioxide, methane, and nitrous oxide.

Front

How does deforestation affect the carbon cycle?

Back

Deforestation reduces the number of trees that can absorb carbon dioxide, leading to higher levels of carbon dioxide in the atmosphere.

Front

What is the significance of the carbon cycle in the ecosystem?

Back

The carbon cycle is crucial for maintaining the balance of carbon in the environment, supporting life by regulating climate and providing energy.