Answer:
Beeper
Explanation:
A buzzer pr beeper, as security device, converts electrical energy to sound energy.
Answer:
c. This would reduce the number of tuples to involve in the join resulting in a more efficient query.
Explanation:
SQL or structured query language is a database querying language used to communicate or interact with databases. A database query could be as simple as returning all the columns from a database table to complex like joining several query results which in turn forms an algebra expression.
Every query statement or expression is executed with time, execution time needs to be minimized for efficiency, so, a well-arranged and reduced joining in the query improves the efficiency of the query.
Answer: See explanation
Explanation:
An airpot is typically used in keeping of drinks warm. They can be used for outdoors or during meetings. Three aftercare activities that one can apply in cleaning airpot include:
a. To clean an airpot, use a damp cloth and soapy water after the remaining fluid that remains in the airpot has been emptied.
Ab. When cleaning an airpot, it should be noted that corrosive chemicals should not be used to clean them due to the fact that they aren't dishwasher safe.
c. Before storing the airpot, one needs to ensure that every part of the airpot gets dry.
# 2 on the right goes to zipties
Answer:
Explanation:
One group of students did an experiment to study the movement of ocean water. The steps of the experiment are listed below.
Fill a rectangular baking glass dish with water.
Place a p
