Carbon Cycle and Climate Change Quiz

What is the primary process by which plants take in carbon dioxide?

• Respiration

• Photosynthesis

• Decomposition

• Combustion

Which of the following is a major reservoir of carbon?

• Atmosphere

• Oceans

• Soil

• All of the above

What role do decomposers play in the carbon cycle?

• They produce oxygen.

• They absorb carbon dioxide.

• They break down organic matter and release carbon.

• They store carbon in rocks.

Which process releases carbon dioxide back into the atmosphere?

• Photosynthesis

• Respiration

• Carbon sequestration

• Both A and B

What is the effect of increased carbon dioxide levels in the atmosphere?

• Cooling of the Earth

• Global warming

• Decreased plant growth

• Increased oxygen production

Which human activity significantly contributes to the carbon cycle?

• Planting trees

• Burning fossil fuels

• Recycling

• Conservation

How do oceans contribute to the carbon cycle?

• By absorbing carbon dioxide

• By releasing oxygen

• By producing methane

• By storing nitrogen

Which of the following is NOT a greenhouse gas?

• Carbon dioxide

• Methane

• Nitrogen

• Water vapor

What is the primary source of methane emissions?

• Deforestation

• Livestock digestion

• Industrial processes

• Transportation

What is climate change?

• A temporary change in weather patterns

• Long-term alteration of temperature and typical weather patterns

• A natural disaster

• A type of pollution