QUESTION: answer this: how long does it take earth to rotate around the sun??

ANS: 365.256days

QUESTION: answer this: the reaction of iron metal with oxygen to form iron (iii) oxide??

ANS: rusting

QUESTION: answer this: where was the biggest gold nugget ever found??

ANS: Moliagul, Victoria, Australia

QUESTION: answer this: what is the use of + in java??

ANS:
String concatenation