What are the four major subsystems of Earth known as spheres?

• Geosphere, Hydrosphere, Atmosphere, Biosphere

• Lithosphere, Hydrosphere, Atmosphere, Ecosphere

• Geosphere, Hydrosphere, Stratosphere, Biosphere

• Lithosphere, Hydrosphere, Troposphere, Biosphere

Which sphere includes all the water on Earth, such as oceans, rivers, and glaciers?

• Hydrosphere

• Geosphere

• Atmosphere

• Biosphere

How do ocean currents in the hydrosphere affect the atmosphere?

• They influence air temperatures.

• They create new landforms.

• They produce oxygen.

• They cause volcanic eruptions.

What is the primary role of the atmosphere in relation to living organisms?

• Protecting them from harmful solar radiation

• Providing a habitat for marine life

• Supplying nutrients for plant growth

• Supporting the Earth's crust

What is an example of a human activity that positively influences all four spheres?

• Recycling

• Deforestation

• Burning fossil fuels

• Overfishing