Mystery surrounding Earth's core deepened by new study

The Earth's core, a solid iron ball, is losing heat faster than previously thought. This may indicate more decaying radioactive material or a faster solidification rate. Recent studies suggest the core, similar in size to Mars, rotates faster than the rest of the planet.

What is the current understanding of the rate at which the Earth's core is losing heat?

• The rate of heat loss is unknown.

• It is losing heat at the same rate as before.

• It is losing heat two to three times faster than previously thought.

• It is losing heat slower than previously thought.

What could be a reason for the increased heat loss from the Earth's core?

• The core is expanding.

• The core contains more decaying radioactive material.

• The core is shrinking.

• The core is cooling down.

What is another possible explanation for the faster heat loss from the Earth's core?

• The core is losing mass.

• The core is becoming more liquid.

• The core is melting.

• The core is solidifying at a faster rate.

How does the size of the Earth's core compare to other celestial bodies?

• It is the same size as the Moon.

• It is larger than Mars.

• It is about the same size as Mars.

• It is smaller than the Moon.

What is the rotational behavior of the Earth's core compared to the rest of the planet?

• The core rotates faster than the rest of the planet.

• The core does not rotate.

• The core rotates slower than the rest of the planet.

• The core rotates at the same speed as the rest of the planet.