Answer:
A foundation plays three major roles in the construction of a structure. A good and strong foundation keeps the building standing while the forces of nature wreak havoc. Well-built foundations keep the occupants of the building safe during calamities such as earthquake, floods, strong winds etc.
Here are few commands for Mac:
Command+C ⇔ <span><span>Copies selected items
</span>Command+D </span>⇔ <span>Duplicates the selected item(s)
Command+E </span>⇔ <span>Ejects the selected volume
Command+F </span>⇔ <span>Displays the Find dialog
Command+H </span>⇔ <span>Hides All Finder windows
Command+I </span>⇔ <span>Shows info for selected item or items
Command+J </span>⇔ <span>Shows the view options for the active window
Command+K </span>⇔ Displays the Connect to Server dialog