সঠিক উত্তর হচ্ছে: 11030 m
ব্যাখ্যা:
The approximate depth of the Mariana Trench or the Pacific Ocean is 11030 m. The maximum known depth is 10,994 metres (36,070 ft) (± 40 metres [130 ft]) at the southern end of a small slot-shaped valley in its floor known as the Challenger Deep.
