Answers to Quiz - 2

1) Name the deepest spot on earth located at 11034 m in the Pacific Ocean

Challenger Deep

2) The International Hydrographic Organization delimited and defined a new ocean in 2000. Name this fifth ocean.

The Southern Ocean

3) Name the Spanish explorer who discovered the Pacific Ocean

Vasco Nuñez de Balboa

4) There are three main processes that make the oceans circulate: tidal forces, wind stress, and density differences. What is the name given to the circulation driven by density differences?

Thermohaline circulation

5) The waters of the ocean are divided into three zones. While the top two zones can be penetrated by sunlight, it does not reach the deepest zone. What is the name of this zone that it not penetrated by sunlight ?

Aphotic Zone

6) Two important oceanic currents, one cold and the other warm meet at Grand Banks near Newfoundland, creating heavy fog and also one of the richest fishing grounds in the world. The warm current is the Gulf Stream. Name the cold current.

Labrador Current

7) What is the name given to the deposits of dead shells occurring uniformly on the ocean floors of the world?

Globigerina ooze

8) Who invented the Bathysphere, a spherical deep-diving chamber in which persons are lowered by a cable to study the oceans and deep-sea life?

William Beebe and Otis Barton

9) With a maximum depth of 8,047 meters, which is the deepest trench of the Indian Ocean?

The Diamantina Trench

10) What are lines on a map joining points of equal underwater depth called?

Isobath