Explanation

Ctrl + D is used to open the Font dialog box in MS Word.

It where you can change font settings. 

Bold: Ctrl + B

Alignment:

• Ctrl + E (Center)
• Ctrl + L (Left)
• Ctrl + R (Right)

Justification: Ctrl + J

Explanation

• The operating system is also called the interface  between the user and the computer
• ..
• The Operating System is the Interface between the user and the computer.
• It is called the Interface because it converts the commands the user gives to a language that the computer can understand (machine language) and vice versa.
• Multiple operating systems are available such as Windows, Mac OS, and Linux.
• ..
• virus protection is not the function of the operating system
•  Real-time system operating system reads and reacts in actual time

Explanation

• An Operating System (OS) is System software.
• It manages hardware resources and provides a platform for running application software.

Functions of an Operating System:

• Allocates resources
• Monitors activities
• Manages disks and files

Explanation

Firefox and Google Chrome are popular web browsers used to access the internet.

They allow users to view and interact with web pages.

Mozilla Firefox, or simply Firefox, is a free and open-source web browser

Initial release  September 23, 2002.

In 2017, Firefox began incorporating new technology under the code name Quantum to promote parallelism and a more intuitive user interface.

Explanation

To find the average speed, divide the total distance by the total time:

Average speed = Total distance ÷ Total time

= 240 km ÷ 3 hr

= 80 km/hr

So, the bus's average speed is 80 km/hr.

Explanation

The angle sum of a triangle will always be equal to 180°.

The angle sum of a quadrilateral is equal to 360°

And a triangle can be created by slicing a quadrilateral in half from corner to corner. Since a triangle is essentially half of a quadrilateral

Its angle measures should be half as well. Half of 360° is 180°

Explanation

• The average internal temperature of the human body is 37°C (98.6°F).
• It is the normal body temperature range for a healthy adult.

Explanation

Zealot means کٹر

Fanatic means کٹر

Explanation

The F12 key used for 'Save As' 

But Ctrl + F12 will open a document from File Explorer.

Shift + F12 acts in the same way as Ctrl + S to save the document,

Ctrl + Shift + F12 will print a document with the default settings. 

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Explanation

Greenland is the world's largest island.

Greenland is an island country in North America

Area: 2.131 million km²

Max width: 1,050 km

Home to 56,000 people, Greenland has its own extensive local government

Greenland is part of the Kingdom of Denmark.

Greenland is located between the Arctic and Atlantic oceans, east of the Canadian Arctic Archipelago

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Nauru is the first smallest island in the world