La estructura de la Tierra

The video explains the structure of Earth, detailing its four layers: the inner core, outer core, mantle, and crust. The inner core is a solid iron and nickel ball, extremely hot and the planet's engine room. The outer core is liquid due to lower pressure. The mantle, mostly solid, can melt into magma. The crust is the thinnest layer, divided into tectonic plates that float on magma, affecting continents and oceans. These layers influence Earth's environment and climate.

What is the primary composition of the Earth's inner core?

• Magnesium and Aluminum

• Silicon and Oxygen

• Iron and Nickel

• Carbon and Hydrogen

Why is the outer core in a liquid state?

• It is under high pressure

• It is composed of water

• The pressure is lower than in the inner core

• The temperature is too low

What is the term for the liquid rock that forms when the mantle melts?

• Lava

• Magma

• Sediment

• Basalt

How thick is the Earth's crust?

• 1 to 5 km

• 100 to 200 km

• 5 to 70 km

• 300 to 500 km

What is the significance of the crack in Iceland?

• It marks the equator

• It is the deepest part of the ocean

• It is a volcanic hotspot

• It separates two tectonic plates