Layers of the Earth

What is the approximate size of the earth's inner core?

• One-third the size of the moon

• Two-thirds the size of the moon

• Equal to the size of the moon

• Half the size of the moon

What is the temperature at the center of the earth's inner core?

• Equal to the surface temperature of the sun

• One-fourth the surface temperature of the sun

• Twice the surface temperature of the sun

• Half the surface temperature of the sun

How do scientists study the earth's core when they can't physically go there?

• By drilling into the core

• By analyzing data from seismic waves

• Through direct observation

• By sending probes into the core

What is the main function of the earth's core?

• To regulate the planet's temperature

• To create the planet's atmosphere

• To generate the planet's magnetic field

• To support life on the surface

What is the cause of the earth's axis shift?

• Movement of the tectonic plates

• Climate changes and melting glaciers

• Human activities

• Impact of asteroid collisions

What is the main factor causing one side of the earth to lose heat more quickly than the other?

• Presence of large land masses

• Absorption of heat from the sun

• Difference in solar radiation

• Thinner sea floor

What is the main function of clouds in regulating the planet's temperature?

• To absorb heat from the earth's surface

• To release heat into the atmosphere

• To reflect sunlight back into space

• To trap heat from the sun

What is the primary reason for the formation of earthquakes?

• Movement of the earth's core

• Drifting of the tectonic plates

• Volcanic eruptions

• Human activities

What is the main component of the earth's crust?

• Iron

• Silicon

• Oxygen

• Aluminium

What causes the earth's magnetic field?

• The rotation of the earth

• The movement of the tectonic plates

• The flow of liquid iron within the earth's outer core

• The gravitational pull of the sun and the moon