Earth - Level 9 Test

What are the four main spheres that interact in global systems?

• Atmosphere, Biosphere, Hydrosphere, and Cryosphere

• Atmosphere, Biosphere, Hydrosphere, and Lithosphere

• Atmosphere, Biosphere, Lithosphere, and Asthenosphere

• Atmosphere, Hydrosphere, Lithosphere, and Magnetosphere

Which of the following is a key component of the carbon cycle?

• Nitrogen fixation

• Photosynthesis

• Evaporation

• Plate tectonics

What is the primary cause of the greenhouse effect?

• Increased volcanic activity

• Deforestation

• Accumulation of greenhouse gases in the atmosphere

• Ocean currents

Which gas is most responsible for global warming?

• Oxygen

• Nitrogen

• Carbon dioxide

• Argon

What is the process by which water cycles through the environment?

• Photosynthesis

• Evaporation

• Water cycle

• Carbon cycle

Which layer of the Earth is involved in plate tectonics?

• Crust

• Mantle

• Core

• Lithosphere

What is the theory that explains the movement of continents?

• Evolution

• Plate tectonics

• Big Bang

• Quantum mechanics

Which of the following is a consequence of global warming?

• Decreased sea levels

• Increased biodiversity

• Melting polar ice caps

• Stabilised weather patterns

What is the main source of energy that drives the water cycle?

• Wind

• Sun

• Earth's core

• Moon

Which of the following processes releases carbon dioxide into the atmosphere?

• Photosynthesis

• Respiration

• Nitrogen fixation

• Evaporation