Carbon Cycle and Climate Change

What do plants produce during photosynthesis?

• Oxygen and glucose

• Carbon dioxide and water

• Nitrogen and glucose

• Oxygen and nitrogen

How do humans contribute to the carbon cycle?

• By planting trees that absorb carbon dioxide from the atmosphere.

• Through the burning of fossil fuels, which releases carbon dioxide into the atmosphere.

• By reducing carbon emissions through renewable energy sources.

• By increasing the amount of oxygen in the atmosphere.

What is the role of carbon dioxide in global warming?

• Carbon dioxide is a pollutant that harms human health.

• Carbon dioxide is a greenhouse gas that traps heat in the atmosphere, contributing to the greenhouse effect and global warming.

• Carbon dioxide is a necessary component for photosynthesis in plants.

• Carbon dioxide has no significant impact on global temperatures.

What are greenhouse gases?

• Gases that trap heat in the atmosphere, including carbon dioxide, methane, and nitrous oxide.

• Gases that cool the atmosphere and reduce global warming.

• Gases that are produced only by human activities.

• Gases that are found only in the stratosphere.

What is the greenhouse effect?

• The process by which the Earth's surface cools due to the reflection of sunlight.

• The warming of the Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.

• The phenomenon where plants absorb carbon dioxide and release oxygen.

• The increase in Earth's temperature due to deforestation and urbanization.

What is the carbon cycle?

• The process by which carbon is exchanged between the atmosphere, land, water, and living organisms.

• A method of carbon capture and storage in geological formations.

• The cycle of carbon emissions from industrial activities.

• A natural process that only occurs in forests.

What is respiration in the context of the carbon cycle?

• The process by which plants absorb carbon dioxide and release oxygen.

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

• The process of photosynthesis where sunlight is converted into chemical energy.

• The process of nitrogen fixation in soil by bacteria.

What happens to carbon during combustion?

• It is converted into carbon monoxide and released into the atmosphere.

• It is transformed into carbon dioxide and other gases are released into the atmosphere.

• It remains unchanged and is stored in the material.

• It is absorbed by the surrounding environment without any emissions.

What is the impact of increased greenhouse gases on climate?

• Increased greenhouse gases lead to more warming of the atmosphere, resulting in climate change and its associated effects.

• Increased greenhouse gases have no significant impact on climate.

• Increased greenhouse gases cool the atmosphere and reduce climate change effects.

• Increased greenhouse gases only affect air quality, not climate.

What is the relationship between humans and plants in terms of carbon dioxide and oxygen?

• Humans produce oxygen, and plants produce carbon dioxide.

• Humans depend on carbon dioxide produced by plants, while plants depend on oxygen produced by humans.

• Humans depend on oxygen produced by plants, while plants depend on carbon dioxide produced by humans and other organisms.

• Humans and plants do not have any significant relationship regarding carbon dioxide and oxygen.