The Four Spheres of the Earth

The video explains Earth's structure, highlighting its division into four spheres: lithosphere, atmosphere, hydrosphere, and biosphere. Each sphere represents different components of Earth, such as land, air, water, and life. When combined, these spheres form the complete planet Earth.

What is formed when the entire land surface of Earth is combined?

• Biosphere

• Lithosphere

• Hydrosphere

• Atmosphere

Which sphere is made up of the air surrounding the Earth's surface?

• Biosphere

• Atmosphere

• Lithosphere

• Hydrosphere

What does the bluish spot on a globe represent?

• Biosphere

• Hydrosphere

• Atmosphere

• Lithosphere

Which sphere includes all life forms on Earth?

• Lithosphere

• Atmosphere

• Hydrosphere

• Biosphere

What is the result when the lithosphere, atmosphere, hydrosphere, and biosphere combine?

• The complete Earth

• A large ocean

• A new ecosystem

• A new planet