Q 01/05

How does the Arctic rank among the world's five oceans by size?

A) Fourth largest

B) Largest

C) Smallest

D) Third largest

Answer · why

C) Smallest

Smallest. It is still about one and a half times the size of the United States, but because it is also the shallowest ocean it holds little more than ...

Q 02/05

North of the Arctic Circle, what happens on at least one day every summer?

A) The sun never rises

B) The sun never sets

C) Day and night are equal

D) The sun passes directly overhead

Answer · why

B) The sun never sets

The sun never sets. The Arctic Circle is drawn where this midnight sun lasts a single day, and the effect grows northward until, at the Pole itself, d...

Q 03/05

Which sea's name do some oceanographers borrow for the nearly landlocked Arctic Ocean, calling it the 'Arctic ___ Sea'?

A) Caribbean

B) Mediterranean

C) Adriatic

D) South China

Answer · why

B) Mediterranean

Mediterranean. To oceanographers a mediterranean sea is any basin almost enclosed by land that swaps little water with the wider ocean, which is why t...

Q 04/05

What is the main prey of polar bears hunting on the Arctic sea ice?

A) Walruses

B) Arctic foxes

C) Seals

D) Reindeer

Answer · why

C) Seals

Seals. A polar bear will wait beside a breathing hole in the ice to seize a ringed seal as it surfaces, which is why the bears struggle to feed when t...

Q 05/05

Which pole has been drifting for decades from Arctic Canada toward Siberia?

A) Geographic North Pole

B) North Celestial Pole

C) North Magnetic Pole

D) Northern Pole of Inaccessibility

Answer · why

C) North Magnetic Pole

North Magnetic Pole. It wanders tens of kilometres a year as Earth's field shifts, so the magnetic model behind ship, aircraft and phone navigation ha...