<span>subnet mask is used to identify the network portion and the host portion of an ip address.</span>
b. Ribbons - Powerpoint 2016 has a tabbed ribbon system that groups relevant menus together according to category. The ribbon contains a number of tabs, each having a separate group of commands. The tabs can be used to do most of the common tasks in Powerpoint.
Advantages: Nuclear energy has the ability to produce electricity without greenhouse gas emissions. It produces electricity without pollution
Disadvantages: The nuclear weapons threats. Some reactors produce plutonium which can be used to make nuclear weapons
