Which is the largest and deepest ocean in the world?

The correct answer is C, Pacific Ocean. The Pacific covers a greater area than all the land on earth put together and is also the deepest ocean, holding the Challenger Deep in the Mariana Trench, the deepest known point on the planet. Its rim is ringed by volcanoes and earthquake zones, which is why it is called the Ring of Fire.

Option A, the Atlantic, is the second largest ocean and is famous for the mid-Atlantic ridge along which the sea floor is spreading. Option B, the Indian Ocean, is the third largest, the only major ocean named after a country, and the one whose monsoon winds shaped the trade of the region. Option D, the Arctic, is the smallest and shallowest of the oceans and is largely covered by ice. A candidate should remember the order by size, Pacific, Atlantic, Indian, Southern and Arctic, because the paper asks for the smallest as often as for the largest.