original: However, unlike the moon, it has a large iron core, which generates a magnetic field about 1% as strong as that of the Earth.
simplifications: It has a large iron core generating a magnetic field about 1% the Earth's field strength. It has a large iron core. The core creates a strong magnetic field. However, unlike the moon, it has a large iron core. This creates a magnetic field about 1% as strong as Earth's. However, unlike the moon, it has a large iron core that makes a magnetic field about 1% as strong as Earth's. Different from the moon it has a large iron core. This core generates a magnetic field that is much weaker than Earth's. It has an iron core which creates a weak magnetic field. Unlike the moon, it has a large iron core,which generates a magnetic field about 1% as strong as that of the Earth. But, unlike the moon, it has a large iron center, which makes a magnetic field about 1% as strong as that of the Earth. Unlike the moon, though, it has a large iron core, producing only 1 per cent as heavy a magnetic field as the Earth's. It has a large iron core, which creates a magnetic field about 1% as strong as that of the Earth, unlike the moon.