Environmental Science Quiz

What does the Keeling Curve measure?

• Nitrogen levels in the atmosphere

• Global temperature changes

• Atmospheric CO₂ concentration

• Water vapour in the atmosphere

Where were the measurements for the Keeling Curve first taken?

• Greenland

• Antarctica

• Mauna Loa, Hawaii

• The Amazon Rainforest

Why does the Keeling Curve show an annual oscillation?

• Changes in ocean currents

• Seasonal photosynthesis cycles in plants

• Volcanic eruptions

• Variations in solar radiation

What long-term trend does the Keeling Curve indicate?

• Decline in atmospheric CO₂

• Stable levels of CO₂

• Increase in atmospheric CO₂

• No observable trend

Which of the following is a carbon sink?

• Volcanic eruptions

• Deforested land

• Oceans

• Combustion engines

How is carbon primarily returned to the atmosphere from living organisms?

• Photosynthesis

• Respiration

• Sedimentation

• Fossilisation

Which human activity most significantly disrupts the carbon cycle?

• Urbanisation

• Burning fossil fuels

• Mining metals

• Desalination

What is the primary driver of the water cycle?

• Wind currents

• Solar energy

• Gravity

• Earth's magnetic field

Which process in the water cycle directly contributes to cloud formation?

• Evaporation

• Precipitation

• Transpiration

• Condensation

Which reservoir holds the majority of Earth's water?

• Rivers

• Glaciers

• Oceans

• Groundwater