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How many main layers is the Earth divided into?

• Two

• Three

• Four

• Five

Which of the following are the three main layers of the geosphere?

• Troposphere, Stratosphere, Mesosphere

• Core, Mantle, Crust

• Oceanic, Continental, Terrestrial

• Hydrosphere, Atmosphere, Biosphere

¿Estás disfrutando la lección en vídeo?

• Sí

• No

What does the term "hydrosphere" refer to?

• The solid layer of the Earth.

• The layer of gases surrounding the Earth.

• All the water on Earth.

• The Earth's core.

Which of the following is a function of the atmosphere?

• Storing minerals and rocks.

• Regulating temperature and protecting from UV rays.

• Causing tectonic plate movement.

• Forming oceans and rivers.