Question Discussion & Solution

Pattern followed is:

Hence, “GIO” is the correct answer.

The correct answer is BIOS.

BIOS is not a computer operating system.

Important Points

• BIOS (basic input/output system)
  • It is a program that is used by a computer's microprocessor to start the computer system after it is powered on.
  • It also manages data flow between the computer's operating system (OS) and attached devices, such as the hard disk, video adapter, keyboard, mouse and printer.

Key Points

• The Unix
  • A Unix family is a diverse group of operating systems, with sub-categories including System V, BSD, and Linux.
  • The name "UNIX" is a trademark of The Open Group which licenses it for use with any operating system that has been shown to conform to their definitions. 
• macOS 
  • It is an open core graphical operating system.
  • It is developed, and marketed, and sold by Apple Inc.
• Microsoft Windows
  • It is a family of proprietary operating systems designed by Microsoft Corporation.
  • It is primarily targeted at Intel architecture based computers.

Additional Information

• Operating system
  • An operating system (OS) is system software that manages computer hardware, software.
  • An operating system is a large and complex system.
  • OS system components include:
    • File,
    • Process,
    • Memory,
    • I/O device management.

 Indus Valley Civilization

• Indus Valley Civilization was one of those early urban civilizations that were originated in 2300 BC and were developed in the river basins of Sutlej, Ravi, and Indus.
• Indus Valley Civilization peoples cultivate many crops such as Barley, Wheat, Melon seeds, and oil crops like Sesame, Mustard, and Dates. These were traded by farmers with other people. 
• The most typical Indus seal is square, with a set of symbols along the top, an animal in the centre, and one or more symbols at the bottom.  

Seals

• The unicorn is the most common motif on Indus seals and appears to represent a mythical animal that Greek and Roman sources trace back to the Indian subcontinent. A relatively long inscription of eight symbols runs along the top of the seal. Hence option 3 is correct.

 Additional Informationhttps://www.harappa.com/indus/25.html#:~:text=The%20unicorn%20is%20the%20most,the%20top%20of%20the%20seal.

• Archaeologists have discovered thousands of seals, mostly made of steatite, and occasionally of agate, chert, copper, faience and terracotta, with beautiful figures of animals, such as unicorn bull, rhinoceros, tiger, elephant, bison, goat, buffalo, etc.
• The realistic rendering of these animals in various moods is remarkable. The purpose of producing seals was mainly commercial.
• It appears that the seals were also used as amulets, carried on the persons of their owners, perhaps as modern-day identity cards. The standard Harappan seal was a square plaque 2×2 square inches, made from steatite.
• Every seal is engraved in a pictographic script which is yet to be deciphered. Some seals have also been found in ivory.
• They all bear a great variety of motifs, most often of animals including those of the bull, with or without the hump, the elephant, tiger, goat and also monsters.

Given that-

We add upper two number then divide by 2 and then square of that number we get lower number.

(6 + 4) ÷ 2 = 5² = 25

(3 + 1) ÷ 2 = 2² = 4 

Similarly,

(5 + 3) ÷ 2 = 4² = 16

Alternate Method 

Figure 1: 6 × 4 + 1 = 25 

Figure 2:  3 × 1 + 1 = 4

similarly, 

Figure 3:  5 × 3 + 1 = 16

Hence, "16" is the correct answer.

The correct answer is Magnesium Sulfate.

• Magnesium Sulfate is the industrial name of Epsom.
• Magnesium sulfate is a magnesium salt having sulfate as the counterion.
• It has a role as an anticonvulsant, a cardiovascular drug, a calcium channel blocker, an anaesthetic, a tocolytic agent, an anti-arrhythmia drug, an analgesic, and a fertilizer. It is a magnesium salt and a metal sulfate.

Key Points

• Magnesium Sulfate Formula Structure:  

Additional Information