 
 <translate> Give some stream of consciousness and then the answer. The Earth's inner core is the Earth's innermost part. It is primarily a solid ball with a radius of about 1,220 kilometres (760 miles), which is about 70 % of the Moon's radius. It is composed of an iron -- nickel alloy and some light elements. The temperature at the inner core's surface is approximately 5,700 K (5,430 ° C), which is about the temperature at the surface of the Sun.

Based on this passage, what is believed to be the composition of earth's core? <hau> Ka ba da wani rafi na sani sannan kuma amsar. Ƙarƙashin ƙasa shi ne ɓangaren da ke cikin ƙasa. Yana da farko ƙwallon ƙwallon ƙafa tare da radius na kimanin kilomita 1,220 (760 mil), wanda shine kimanin kashi 70 cikin dari na radius na Moon. Ya kunshi wani ƙarfe - nickel gami da wasu haske abubuwa. Yanayin zafin jiki a farfajiyar tsakiya na ciki shine kimanin 5,700 K (5,430 ° C), wanda yake game da zafin jiki a farfajiyar Sun.  Bisa ga wannan nassin, menene aka gaskata cewa zuciyar duniya ta ƙunsa? 