I think it is OU, i typed it all out and it showed “ OU “
Answer: The age of the stars in the system.
Explanation: All stars have different ages; Stars take on certain forms depending on their age, causing a difference in their looks. Thus making #3 as your answer.<em><u> ( The age of the stars in the system)</u></em>
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The steel industry benefitted the most from the Bessemer Process.
The Bessemer Process is an industrial process that was the first inexpensive option in mass steel production. This process was named after Henry Bessemer, who took out a patent in 1856.
Answer: reliable but not valid
Explanation: Reliability does not translate to validity. This can be proved using the behavior of John's oven which has exhibited consistency in functionality and performance which defines that the readings and output are reliable. However, even though John's oven has exhibited constant output reliability due to its ability to consistently give similar readings or performance levels for about a month, the consistent performance which has been showcased by the oven seems to be faulty as food seem to get burnt regularly. This consistent output or performance level lacks validity as the temperature Guage incorrectly shows temperature which is 50 degrees cooler than the actual oven temperature.
Answer: The two step flow of communication
Explanation: