Q 01/05

Which salt lake bordered by Jordan and Israel has shores that are the lowest land on Earth?

A) Salton Sea

B) Dead Sea

C) Lake Assal

D) Sea of Galilee

Answer · why

B) Dead Sea

The Dead Sea lies more than 400 metres below sea level and is over nine times as salty as the ocean, which makes swimming there feel like floating.

Q 02/05

Which sea bordered by Russia, Iran and three other countries is often ranked the world's largest lake?

A) Caspian Sea

B) Black Sea

C) Barents Sea

D) Baltic Sea

Answer · why

A) Caspian Sea

The Caspian Sea covers an area larger than Germany and holds over 40% of the world's lake water, though that water is slightly salty rather than fresh...

Q 03/05

Which Siberian lake, the world's deepest, holds more water than all five North American Great Lakes?

A) Ladoga

B) Balkhash

C) Onega

D) Baikal

Answer · why

D) Baikal

Baikal is also the world's oldest lake, at 25 to 30 million years, and it contains more than a fifth of the planet's fresh surface water.

Q 04/05

Which busy seaway, crossed by a rail tunnel since 1994, do the French call La Manche, 'the sleeve'?

A) Irish Sea

B) Bay of Biscay

C) English Channel

D) Bristol Channel

Answer · why

C) English Channel

The English Channel is the busiest shipping area in the world, and its French name is usually said to describe its long, sleeve-like shape.

Q 05/05

Which sea in the North Atlantic is the only one on Earth bounded by currents instead of land?

A) Sargasso Sea

B) Labrador Sea

C) Norwegian Sea

D) Irminger Sea

Answer · why

A) Sargasso Sea

The Sargasso Sea takes its name from the floating Sargassum seaweed that covers it, and both European and American eels migrate there to spawn.