Answer:
Basically, anything quantity that is not defined as one of the 7 base quantities is a derived quantity by definition. Pressure is not one of the 7 base quantities. Hence it is a derived quantity.
Four binary digits
A single hexadecimal digit can represent four binary digits.
A web application starts when a client sends a request to a server
In a relational database application, a <u>foreign key</u> is used to link one table with another.
<h3>What is a
foreign key?</h3>
In database management system (DBMS), a foreign key can be defined as a column whose value provides a link between the data that are stored in a table or relational database.
This ultimately implies that, a <u>foreign key</u> is used to link one table with another in a relational database application.
Read more on keys here: brainly.com/question/8131854
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