10 most difficult lakes riddlesLakes quiz
The Caspian Sea, the largest lake in the world, is:
North freshwater, south saltwater
North freshwater, south saltwater, east super salty.
The Caspian Sea, fed by freshwater (sweet) rivers, mainly Volga (80%) and Ural in the north, is freshwater, while it's deeper, warmer and saline (1.2%) in the south. The salinity of Garabogazköl, shallow eastern bay is 35%!
Visiting Antarctica, we will not be able to see:
the saltiest lake in the world
the most oxygenated lake in the world
a stony desert
In Antarctica we can find the Erebus high volcano at nearly 4 km, the Don Juan pond with a salinity of 44.2%, and the desert of the McMurdo Valleys. Lake Vostok with an oxygen content 5 times more than the average, however, is hidden under a 4 km layer of glacier.
What U.S. state has the nickname "Land of 10,000 Lakes"?
Minnesota is a state in the midwestern and northern regions of the United States. Minnesota was admitted as the 32nd U.S. state on May 11, 1858, created from the eastern half of the Minnesota Territory. The state has a large number of lakes, and is known by the slogan "Land of 10,000 Lakes".
Where is the famous Jellyfish Lake located?
Viti Levu island
Eil Malk island
The Jellyfish Lake is a marine lake located on the Eil Malk island in Palau. It is filled with millions of golden jellyfish, migrating across the lake every day following the arc of the sun. The lake is stratified into two layers, an oxygenated upper layer and a lower anoxic layer, hence scuba diving is forbidden so the two wouldn't mix. But snorkelling is allowed and a very popular activity for tourists in Palau.
Where is the world's second largest hot lake located?
in New Zealand
The Boiling Lake is situated in the Morne Trois Pitons National Park, Dominica's World Heritage site. It is the second-largest hot lake in the world after the Frying Pan Lake in New Zealand. Its temperature range is from 180 to 197 °F (82–92 °C) along the edges, but at the centre it is actively boiling.
The Elevation of Lake Superior is 183m, Michigan 177m, Huron 176m and Erie 174m. How about Ontario?
The gradient between The Great Lakes is generally very shallow. However, the descent between Erie and Ontario is greater than between any of the others, and includes the spectacular Niagara Falls, 51m high.
Which of these lakes is considered the most toxic in the world?
Lake Karachay is a small lake in central Russia. It is often referred to as the most polluted site on earth. Containing just one square mile of water, the lake formed a dumping ground for nuclear waste by for around 12 years.High level radioactive waste makes up almost the entire lake-bed to a depth of around 3.4 meters. Some areas surrounding the lake have radiation measurements of around 6 Sv/hour, which is enough to give a lethal dose to a human in as little as 30 minutes¹.