Sumali sa IDNStudy.com at makuha ang mabilis at kaugnay na mga sagot. Magtanong at makakuha ng detalyadong sagot mula sa aming komunidad ng mga eksperto na may kaalaman.

Which is a magnet?
A a paper clip
B and iron bar
C Earth
D a penny


Sagot :

C. Earth is a giant magnet because it was believed that the outer core is mostly made of molten iron and nickel. In Physics, hot moving metal creates a magnetic field. In this case, the outer cores moves in respect with the Earth's rotation and revolution, thereby creating a large magnetic field which prevents harmful rays of ions and solar wind from entering the Earth