Answer:
Microsoft PowerPoint.
Explanation:
Because, it is industry standard and widely recognized and used in world.
Answer:
A wave of sound!
Explanation:
sound waves are sound but sound comes in different wavelengths
Answer:
B
Explanation:
Computer security, cybersecurity or information technology security (IT security) is the protection of computer systems and networks from information disclosure, theft of or damage to their hardware, software, or electronic data, as well as from the disruption or misdirection of the services they provide.[1]
