Why do some cats like to drown their toys in their water bowls? Most cats are known to have bizarre behaviors and some of these behaviors can be difficult for humans to understand.
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Who invented the toilet? The toilet, or the water closet as it is commonly called, is a device used for the disposal of organic waste and personal hygiene.
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What is the difference between hard water and soft water? Hard water is water that contains high concentrations of minerals such as calcium and magnesium, while soft water is water that cont...
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What was the deepest underwater dive in human history? The deepest underwater dive in human history was conducted by American underwater explorer Victor Vescovo in 2019, when he reached a de...
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Who was the first diver in history? The first known diver in history was the Greek, Aronne of Phrygia. In the 5th century BC, Aronne used a kind of skin bag to breathe underwater.
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What is the deepest lake in the world? The deepest lake in the world is Lake Baikal, located in southern Siberia in Russia. It has a maximum depth of over 1,642 meters (5,387 feet), making i...
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Difference between freshwater and saltwater fish - The main difference between freshwater fish and saltwater fish is their ability to adapt to the salt concentration conditions in the water.
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Why isn't river water salty? River water isn't salty because it mainly comes from precipitation such as rain and snow, which do not contain mineral salts.
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Why is lake water fresh? Lake water is generally fresh due to the lack of dissolved mineral salts in it.
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Why can't we drink sea water? Sea water is not suitable for human consumption because it contains a high concentration of mineral salts, particularly sodium chloride (NaCl), which can be har...
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