Question Discussion & Solution

Exterior is antonym of interior.

Similarly,

The correct answer is View.

• Slide Master is a tool used in Microsoft PowerPoint that allows you to make changes to all cells in one go by simply adjusting the Slide Master.
• The slide master is present under the View Tab, it can be accessed by navigating to View > Master > Slide Master.
• Slide master allows you to modify background, rearrange placeholders and Customize text formatting among others.
• Each presentation has at least one slide master, but there can be more than one slide master also. 

The correct answer is Copper and Tin.
Key Points

• Bronze
  • Bronze is an alloy traditionally composed of copper and tin.
  • Bronze is of exceptional historical interest and still finds wide applications.
  • It was made before 3000 BC, though its use in artifacts did not become common until much later.
  • The proportions of copper and tin varied widely (from 67 to 95 percent copper in surviving artifacts), but, by the Middle Ages in Europe, certain proportions were known to yield specific properties.
  • An alloy described in an 11th-century Greek manuscript in the library of St. Mark’s, Venice, cites a proportion of one pound copper to two ounces of tin (8 to 1), approximately that used for bronze gunmetal in later times.
  • Some modern bronzes contain no tin at all, substituting other metals such as aluminum, manganese, and even zinc.

Additional Information

• Copper and Silver
  • The best-known copper-silver alloy is sterling, which is 92.5 percent silver and 7.5 percent copper.
  • In England sterling, silver is traditionally identified by the hallmark of a lion passant.
  • Coin silver is an alloy of 90 percent silver and 10 percent copper.
  • For jewelry and ornaments, 85–90 percent silver (and the balance copper) is frequently used.
  • Dental alloys of 60–70 percent silver, 18–25 percent tin, 2–14 percent copper, and 0.5–2 percent zinc are amalgamated with varying quantities of mercury to form the filling materials for cavities in teeth.
• Copper and zinc
  • Brass is an alloy of copper and zinc, of historical and enduring importance because of its hardness and workability.
  • The earliest brass was called calamine brass, which dates to Neolithic times.
  • It was probably made by the reduction of mixtures of zinc ores and copper ores.
  • In ancient documents, such as the Bible, the term brass is often used to denote bronze, the alloy of copper with tin.
• Copper and Lead
  • Leaded bronzes contain from 4 to 25 percent lead plus additions of copper and tin, and some copper-lead bearing alloys contain up to 40 percent lead.
  • All these bearing alloys are sufficiently soft so that lubrication failure does not result in damage to the bearing.
  • Lead-based bearing alloys are also known as lead-based babbitt metals or white metals.
  • These are usually antimonial lead with widely variable additions of tin or copper (or both) and arsenic to increase strength.
  • One such alloy is commonly used for railroad-car journal bearings, contains 86 percent lead, 9 percent antimony, and 5 percent tin.
  • Many alloys of lead and alkaline-earth metals, such as calcium and sodium, also are widely used as bearing materials.

The correct answer is Process.

• Creating user and system processes is part of the Process management function of the operating system.

​Key Points

• The process management component:
  • The process management component is a procedure for managing the many processes that are running simultaneously in the operating system.
  • Every software application program has one or more processes when they are running.
  • For example, when we use a browser like Google Chrome, there is a process running for that browser program.
    • All these processes are managed by process management. 
  • The process management uses memory allocated to them and shutting them down when needed.

Additional Information

• Operating system
  • An operating system is a large and complex system.
  • OS system components include:
    • File,
    • Process,
    • Memory,
    • I/O device management.
• File management
  • File management in an operating system includes file creation and deletion.
  • Manipulating files and directories.
• Memory management
  • ​An Operating System performs the functions for Memory Management such as:
    • It helps to keep track of primary memory.
    • Determine what parts of it are in use by whom, what part is not in use.
• I/O device management
  • ​An Operating System performs the functions for I/O device management such as:
    • It offers a buffer caching system
    • It provides general device driver code
    • It provides drivers for particular hardware devices.

The Correct Answer is "boron deficiency".

• Boron deficiency is a deficiency of the micronutrient boron in plants.
• It causes large losses in crop production and crop quality
• It affects the vegetative and reproductive growth of plants, resulting in inhibition of cell expansion, death of meristem, and reduced fertility.

​Important Points

• Boron deficiency in sugar beets characteristically causes the death of the growing point and the development of blackheart rot.
• Before the deficiency has reached this stage, the leaves, which may have cracked petioles, will have become progressively smaller and somewhat misshapen.
• After the death of the growing point, small bunches of leaves develop in the older leaf axils and the crown is very liable to become hollow and rot.

Additional Information

• The hollow heart is an internal disorder where a 'lens' or 'star'-shaped cavity forms in the tuber.
• It appears to be caused by an abrupt change in tuber growth rate which usually occurs after a period of stress.
• Water, heat stress and associated calcium deficiency appear to have a role in the development of a hollow heart.
• The crisp variety Atlantic and the French fry variety Russet Burbank are prone to hollow heart but if conditions are right most varieties can be affected.
• Hollow heart is an important problem for the potato industry as payments from processors and washer-packers for fresh market potatoes may be reduced.