Final answer:
A naval message is a type of communication used by the military, specifically the navy, to send important information quickly and securely. Email, short for electronic mail, is a widely used form of personal communication over the internet.
Step-by-step explanation:
a) Naval Message:
A naval message is a type of communication used by the military, specifically the navy, to send important information quickly and securely. It is typically sent using specialized equipment and protocols to ensure confidentiality and authenticity. Naval messages can include instructions, orders, intelligence, or other important information that needs to be transmitted efficiently between naval personnel.
b) Email:
Email, short for electronic mail, is a widely used form of personal communication over the internet. It allows individuals to send and receive messages and files electronically. Email is convenient, fast, and can be accessed from various devices. It has become an essential communication tool in both personal and professional settings.