It is a symbol to let they know where they were so they didn’t get lost.
Answer: (B) Centralized database
Explanation:
The centralized database is the one of the type of database in which the data is more potable as is store in the form of centralized system.
The centralized data basically require less maintenance and the power so that is why it is cheaper as compared to all the other type of database system.
The main advantage of the centralized database is that it can be easily accessible and also retrieved from the database system for example server, desktop and the computer mainframe.
Therefore, Option (B) is correct.
Answer: A. greenhouse gas emissions
The issues concerning the increased and uncontrollable amount of greenhouse gases emitted by different industrialized nations today is among the areas that required the attention of several countries. These emissions greatly damages our ozone layer thus worsening global warming making us prone to all types of man-made and natural calamities.
<em>Answer:</em>
<em>encode selectively </em>
<em>Explanation:</em>
<em>In psychology, </em><em>selective encoding is defined as a phenomenon through which a child gets insight about different problems and distinguishes it on the basis of a problem which is being considered as important and problem which is considered as irrelevant. In other words, a child will look for a problem which he or she finds to be important while working on something whereas ignores other things.</em>
<em>In reference to the given question, children must encode selectively.</em>
