Comet Halley Is Unique Because

question 42

Multiple Choice

Comet Halley is unique because

• A) it was the first comet whose return was predicted.
• B) it is a member of the Jovian family but has a retrograde orbit.
• C) its period is less than a human lifetime.
• D) it was successfully visited by a spacecraft.
• E) it was the brightest comet ever observed by humans.

---

Definitions:

User Account Control

User Account Control is a security feature in Windows operating systems that helps prevent unauthorized changes to the operating system by prompting the user for permission or an administrator password.

Password

A secret word or phrase that is used to gain access to a computer system or service, providing a basic form of security authentication.

Phone Settings

Options and features on a smartphone that allow customization of operations, appearance, and usage preferences.

Time And Date

The specific moment determined by a combination of hours, minutes, seconds, day, month, and year.