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Related: 101 Fun Facts You Never Knew, Guaranteed to Totally Blow Your Mind. ... Up to 60% of the human adult body is water. 32. Humans have 99.9% of the same DNA sequence. 33. If a person eats ...
Ace trivia night with these cool and random fun facts for adults and kids. This list of interesting facts is the perfect way to learn something new about life. 105 Fun Facts About Science, History ...
Besides water, tea is the most popular beverage worldwide. Your heart beats an average of 100,000 times each day. The first animals to travel to outer space were fruit flies. Interesting facts for ...
The recommended daily amount of drinking water for humans varies. [1] It depends on activity, age, health, and environment.In the United States, the Adequate Intake for total water, based on median intakes, is 4.0 litres (141 imp fl oz; 135 US fl oz) per day for males older than 18, and 3.0 litres (106 imp fl oz; 101 US fl oz) per day for females over 18; it assumes about 80% from drink and 20 ...
As the surface of sea water begins to freeze (at −1.9 °C for salinity 3.5%) the ice that forms is essentially salt-free, with about the same density as freshwater ice. [19] This ice floats on the surface, and the salt that is "frozen out" adds to the salinity and density of the sea water just below it, in a process known as brine rejection .
Water is the chemical substance with chemical formula H 2 O; one molecule of water has two hydrogen atoms covalently bonded to a single oxygen atom. [26] Water is a tasteless, odorless liquid at ambient temperature and pressure. Liquid water has weak absorption bands at wavelengths of around 750 nm which cause it to appear to have a blue color. [4]
Portuguese water dogs (PWD) gained fame when former US President Barack Obama had one, named Bo, living at the White House in 2009. He was a gift from Senator Ted and Ms. Kennedy to the Obama ...
Water is also central to acid-base neutrality and enzyme function. An acid, a hydrogen ion (H +, that is, a proton) donor, can be neutralized by a base, a proton acceptor such as a hydroxide ion (OH −) to form water. Water is considered to be neutral, with a pH (the negative log of the hydrogen ion concentration) of 7 in an ideal state.