No.
"Hard" drinks contain alcohol. Anything without alcohol is a soft drink.
calories
No.
Soft drinks do not contain foam as an ingredient. However, when opened or poured, some carbonated soft drinks can produce foam due to the release of carbon dioxide gas.
Sodas and soft drinks do NOT contain gluten.
Most soft drinks contain sugar, and sugar is addictive. It's not the drink, it's the sugar in it.
Most contain artificial colors of some type.
They don't contain fat, they contain sugar which your body converts to fat.
Candy / soft drinks / anything sweet... but you probably knew that.
No, they do not. As a matter of fact, they enhance these effects, since most of the soft drinks contain CO2, which helps to deliver alcohol to your blood more quickly.
Cold drink is a general term for any beverage that is served cold, while soft drink refers specifically to carbonated beverages that do not contain alcohol. Some cold drinks can be soft drinks, but not all cold drinks are soft drinks.
Fizzy soft drinks contain many chemicals. One of these is citric acid - a weak acid that is naturally found in citrus fruits such as oranges, lemons and limes. It is added to soft drinks to give a slightly sour taste, to stabilise the 'fizz' and also to serve as a preservative.