Water has this unusual
behavior when cooled at <span>4 degrees Celsius; it expands slightly until
it reaches the freezing point and continue to expand by approximately 9%. This characteristic has something to do with the structure of the water molecule where there is a
strong tendency to form a network of hydrogen bonds and each hydrogen atom is
in a line between two oxygen atoms. These bonds force the crystalline
structure to be very open into hexagonal form and expand dramatically.
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Answer:
Car lights are designed for two functions - to assist the driver and to communicate with other drivers. Accidents are more likely to occur when motorists fail to practice proper use of their lights.
Car lights include: Headlights. There are two types of headlights—low beam and high beam. These lights allow the driver to see the roadway in the dark, while also signaling to other motorists that a car is present.
Most drivers simply get into the car, start it and doesn't even think of lighting or the fact that it can provide security. But most of the light is about security and communications. The headlights and tail lamps ensure that other drivers see you, even in reduced visibility. This is crucial to avoid accidents.
Noble gases are all elements in column 18. aka far right
When a light is on, it is part of a "closed" circuit.
