Top 10 oceans factsOceans quiz
What is represented by the the colour range in this map?
Water salinity. Launched June 10, 2011, Aquarius is NASA’s first satellite instrument specifically designed to study the salt content of ocean surface waters. The complete first year dataset of NASA's Aquarius instrument reveals seasonal changes in the Amazon River's plume. Depending on the prevailing currents, the river's freshwater outflow heads east toward Africa or bends up north to the Caribbean.
When did the first nautical transit of the North Pole happen?
1958. The first nautical transit of the North Pole was made in 1958 by the submarine USS Nautilus, and the first surface nautical transit occurred in 1977 by the icebreaker NS Arktika.
Which sea is the most saline in the world?
Red Sea. The Red Sea is very saline due to high evaporation, very little precipitation, almost no river inflow and isolation from the rest of the Indian Ocean. Salinity reaches 41 ‰ in the northern part (Average for the world's seawater is ~35 ‰).
In which body of water, sea currents reverses their directions twice yearly?
Indian Ocean. Two large circular currents, one in the northern hemisphere flowing clockwise and one south of the equator moving anticlockwise, constitute the dominant flow pattern. During the winter monsoon, however, currents in the north are reversed
This is Sable Island, known as the graveyard of the Atlantic. It is about 109 miles southeast of Nova Scotia. What is the island origin?
Post-glacial. Sable Island is believed to have formed from a terminal moraine deposited on the continental shelf near the end of the last Ice Age. It emerges from vast shoals and shallows which, in tandem with frequent fog and sudden storms, have caused over 350 recorded shipwrecks
Which direction are Easter Island moai facing?
Inland. There is only one ahu (group of statues), Ahu Akivi, with moai facing the ocean. It is unusual also by being one of the few inland ahus. At all other ahus (including all coastal ones) moai face inland.
Tristan da Cunha is the most remote inhabited archipelago in the world. Who discovered it?
Tristan da Cunha lies in the south Atlantic Ocean, 2,816 kilometers (1,750 mi) from the nearest land, South Afric. In 1816 the United Kingdom formally annexed the islands, to ensure that the French would be unable to use the islands as a base for a rescue operation to free Napoleon Bonaparte from his prison in Saint Helena. Today, the main island has a permanent population of 275.
The Pacific War took place in the South America in the years 1879 to 1883. Which territory was the conflict zone?
Atacama Desert. In the 19th century, there were no clear borders defined between Peru, Bolivia and Chile in the area of the Atacama desert. This became a problem with the discovery of valuable sodium nitrate deposits in the area.
Which ocean is the shallowest in the world?
Arctic. The Arctic Ocean is encompassed by a number of continental shelves, including the Siberian Shelf, which is the largest such shelf in the Word. The average depth of the Arctic Ocean is 1,038 m (3,406 ft).
Which country does Easter Island belong to?
Chile. Easter Island is a special territory of Chile that was annexed in 1888. Administratively, it belongs to the Valparaíso Region. The nearest continental point lies in central Chile, at 3,512 kilometers (2,182 mi).