The video explains the similarities between human body systems and Earth's realms, highlighting how both work together to support life. It introduces Earth's four realms: atmosphere, hydrosphere, lithosphere, and biosphere, detailing their components and functions. The atmosphere consists of gases like oxygen and carbon dioxide, the hydrosphere includes all water bodies, the lithosphere comprises landforms, and the biosphere contains all living organisms. The video concludes by emphasizing the interconnectedness of these realms, making Earth a sustainable and livable planet.

What is the primary function of the Earth's divisions or realms?

• To divide the planet into time zones

• To separate different types of land

• To create weather patterns

• To support life on Earth

Which gas is not a major component of the Earth's atmosphere?

• Helium

• Oxygen

• Carbon Dioxide

• Nitrogen

What is the main role of the atmosphere?

• To provide a habitat for marine life

• To store Earth's water

• To support plant growth

• To protect Earth from harmful solar radiation

What do all the water bodies on Earth collectively form?

• Biosphere

• Atmosphere

• Lithosphere

• Hydrosphere

Which of the following is not a landform found in the lithosphere?

• Oceans

• Plains

• Mountains

• Plateaus

What realm is responsible for connecting the other three realms?

• Atmosphere

• Hydrosphere

• Lithosphere

• Biosphere

Which realm includes all living organisms?

• Biosphere

• Lithosphere

• Hydrosphere

• Atmosphere

Where can marine organisms be found?

• Atmosphere

• Hydrosphere

• Biosphere

• Lithosphere

Which realm do humans primarily inhabit?

• Biosphere

• Lithosphere

• Hydrosphere

• Atmosphere

Which realm is essential for the existence of life on Earth?

• Atmosphere

• Hydrosphere

• Biosphere

• Lithosphere