The profession that a person can rely on the information about parallel and perpendicular lines are the civil engineers. They will know if the structure of the building having perpendicular beams means that it may or may not be stable depending on the material used.
For press releases, this is the thing that consumers dislike! This is when you create something that promotes an idea for a story. While advetising on the other hand, is a product or service you're selling and are using certain techniques towards a specifc audience that would be best fit for your product or service. An example of this is the super soaker by Lonnie G. Johnson. When he made the super soaker, the age range was around 5 - 15, this what you call a audience, which is the consumer the advertiser is trying to convice to buy their product or service they are selling.
The concentration of iodide ions in a saturated solution of silver iodide is 9.1 x 10-9m. the solubility product constant of age is.
Concentration is a very common concept used in chemistry and related fields. It is the measure of how much of a given substance there is mixed with another substance.
iodine. Although the iodide ion is colorless, iodide solutions may acquire a brownish tint as a result of oxidation of iodide to free iodine by atmospheric oxygen. Molecules of elemental iodine, consisting of two atoms (I2), combine with iodides to form polyiodides typically I2 + I− → I−3.
Learn more about iodide ion here
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The answer is a. Good luck