Biogeochemical Cycles and the Atmosphere

What is the primary function of the ozone layer in the Earth's atmosphere?

• To trap heat and contribute to the greenhouse effect

• To protect life on Earth from harmful UV radiation

• To absorb carbon dioxide from the atmosphere

• To facilitate the process of photosynthesis

Which layer of the Earth's atmosphere is known for containing the ionosphere?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere

What is the process called when water changes from a liquid to a gas due to heat?

• Condensation

• Evaporation

• Sublimation

• Transpiration

Which of the following is a natural carbon sink?

• Fossil fuels

• Deforestation

• Oceans

• Methanogenesis

What is the term for the large-scale movement of air around the planet, driven by heat from the sun and Earth's rotation?

• Jet Stream

• Atmospheric Circulation

• Humidity

• Groundwater Flow

Which process involves the breakdown of organic matter by microorganisms, releasing carbon back into the soil or atmosphere?

• Photosynthesis

• Respiration

• Decomposition

• Infiltration

What is the primary greenhouse gas present in the Earth's atmosphere?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Argon

Which layer of the Earth's atmosphere is the outermost layer, where atmospheric particles are sparse?

• Troposphere

• Stratosphere

• Mesosphere

• Exosphere

What is the process by which plants release water vapor into the atmosphere through their leaves?

• Evaporation

• Transpiration

• Condensation

• Sublimation

Which of the following is a carbon source?

• Photosynthesis

• Ocean Uptake

• Burning Fossil Fuels

• Carbon Sequestration