La Estructura de la Tierra

How many layers does the Earth have according to the text?

• Three

• Four

• Six

• Five

What is the outermost layer of the Earth called?

• Mantle

• Lithosphere

• Core

• Crust

What is the main composition of the oceanic crust?

• Granite

• Sandstone

• Limestone

• Basalt

How thick can the Earth's crust be?

• Between 5 and 70 kilometers

• Between 1 and 40 kilometers

• Between 20 and 80 kilometers

• Between 10 and 100 kilometers

What percentage of the Earth's total volume does the mantle represent?

• More than 60%

• More than 50%

• More than 80%

• More than 70%

What is the state of the rocks in the mantle?

• Liquid

• Solid

• Gaseous

• Semi-liquid or viscous

What generates the Earth's magnetic field?

• The outer core

• The mantle

• The inner core

• The crust

What are the two types of crust mentioned in the text?

• Upper and Lower

• Oceanic and Continental

• Eastern and Western

• Northern and Southern

What is the temperature range of the outer core?

• Between 2,200 and 4,900 degrees Celsius

• Between 4,000 and 6,000 degrees Celsius

• Between 1,000 and 3,000 degrees Celsius

• Between 3,000 and 5,000 degrees Celsius

What elements are believed to make up the inner core?

• Carbon and Hydrogen

• Magnesium and Calcium

• Silica and Oxygen

• Iron and Nickel