Layers of the earth

What is the composition of the Earth's crust?

• Mainly composed of silicate rocks.

• Primarily made of metals and minerals.

• Consists mostly of liquid magma.

• Composed of organic materials and sediments.

What is the Earth's crust primarily composed of?

• Liquid magma

• Solid, rocky material.

• Gaseous elements

• Water and ice

What is the temperature range of the Earth's inner core?

• Approximately 2,000 to 3,000 degrees Celsius.

• Approximately 4,000 to 5,000 degrees Celsius.

• Approximately 6,000 to 7,000 degrees Celsius.

• Approximately 1,000 to 2,000 degrees Celsius.

What are the layers of the Earth from innermost to outermost?

• inner core, outer core, lower mantle, upper mantle, crust

• crust, upper mantle, lower mantle, outer core, inner core

• outer core, inner core, crust, upper mantle, lower mantle

• lower mantle, crust, outer core, inner core, upper mantle

What is the primary function of the mantle?

• It allows for the movement of tectonic plates through convection currents.

• It is responsible for the Earth's magnetic field.

• It contains the majority of the Earth's water.

• It is the outermost layer of the Earth.

What are tectonic plates?

• Large pieces of the Earth's crust that move and interact with each other.

• Small fragments of rock that float on the ocean surface.

• Layers of soil that support plant growth.

• Giant ice sheets that cover polar regions.

What layer of the Earth is responsible for volcanic activity?

• The crust

• The mantle

• The outer core

• The inner core

What is the significance of the lithosphere?

• It includes the crust and the uppermost part of the mantle, forming tectonic plates.

• It is the layer of the Earth that contains all the water bodies.

• It is the innermost layer of the Earth, composed mainly of iron and nickel.

• It is a layer of gases surrounding the Earth, essential for life.

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

• Liquid and moderately hot.

• Solid and extremely hot.

• Gaseous and cool.

• Solid and moderately warm.

What is the state of the Earth's mantle?

• Solid state of high density made mostly of iron and nickel.

• Molten state of medium density made mostly of silicon and oxygen.

• Gaseous state with low density composed of hydrogen and helium.

• Liquid state of low density primarily made of carbon and sulfur.