Question Discussion & Solution

The correct answer is 60%.

Key Points

• Rajasthan is India's only state that has a real hot desert within its territory.
  • Vast stretches of sand dunes of different kinds - longitudinal dunes, barchans, transverse dunes - are characterized by physiography.
  • Almost 60% area of the THAR Desert in India falls in Rajasthan.

Additional Information

• In reality, a portion of the Thar Desert extending into Pakistan is the Great Indian Desert, covering the districts of Barmer, Jaisalmer, Jalor, Jodhpur, Bikaner, Ganganagar, Churu, Jhunjhunun, Sikar, Nagaur, and Pali.
• The total area of the arid tract is 233,100 square kilometres or approximately three-fifths of the Rajasthan State.
• The rock exposures in the Thar region are predominantly of Aravali gneiss and schist, Malani granites, and Vindhyans, indicating that Thar is part of the peninsular block's western extension.
• Jurassic and Eocene marine formations belong to the rock exposures in the Barmer - Jaisalmer - Bikaner tract to the extreme west and north, whereas those in the central area of Jalor - Siwana - Jodhpur - Khinwasar tract are of igneous rocks, often overlaid by Vindhyan sedimentaries.
• There is also proof of a great culture that had flourished in the past there.
• The deep-seated formations, such as the Jaisalmer Lathis, are small potable water zones with local recharge facilities.
• The blown sand superimposes large stretches of alluvium contributed by ancient rivers in their submerged channels.
• Recurring aridity has endowed this tract with items such as gypsum, potash, common salt, at different stages of geological times. Phosphorus, and bentonitic and ceramic clays.

Important Points

•  The question has been cancelled

The correct answer is Angiosperm.

Key Points

• Angiosperms are also known as Angiospermae or Magnoliophyta.
  • They are flowering and seed-producing plants.
  • It consists of 64 orders, 416 families, approximately 13,000 known genera, and 3,00,000 known species.
  • Their seeds develop in the ovaries of flowers and are surrounded by a protective fruit.
  • Examples of angiosperms are fruits, vegetables, grains, and flowers.
  • Angiosperms are classified as Monocotyledons (monocots) and Dicotyledons (dicots) where monocots are flowering plants whose seeds contain only one embryonic leaf or cotyledon and dicots are flowering plants whose seeds contain two embryonic leaves or cotyledons.

Additional Information

• Thallophyta
  • The plant body is not differentiated from roots, stems, and leaves.
  • They are commonly called algae.
• Bryophyta
  • These are small terrestrial plants.
  • They show differentiation in the body design, with stem, leaf-like structures, and root-like structures.

CONCEPT:

• Plane mirror: This mirror is straight without any inward or outward curve.
  • It forms a virtual image and upright image which is of size as same as the object.
  • The bathroom mirrors are an example.
• Concave mirror: The mirrors curved inside on the reflecting side are called concave mirrors.
  • These mirrors produce a real, inverted, and magnified image of the object.
  • These are used in reflecting telescopes, shaving mirrors, and ophthalmoscope.

• Convex mirror: It is an outward curved mirror that produces a diminished image.
  • Convex mirrors either diverge a parallel beam of light into all directions or gather light from all directions and produce a parallel beam out of it.

EXPLANATION:

• Following are the reasons as to why a convex mirror is used as a rearview mirror in the vehicle

• The image formed by the convex mirror is virtual and erect in contrast to that of the real but inverted image of the concave mirror.
• It gathers light from all directions and aligns it as a parallel beam so that it provides a wider view to the viewer. That's why the convex mirror is used as a rear-view mirror in vehicles. So option 2 is correct.

The correct answer is Punishment shall not be less than seven years, but which may extend to ten years, and shall also be liable to fine.

• Under Section 370, whoever commits the offence of trafficking shall be punished with rigorous imprisonment for a term which shall not be less than seven years, but which may extend to ten years, and shall also be liable to fine.

​ Important Points

•  Section 370 -
  • ​Trafficking means whoever, for the purpose of exploitation, a. recruits b. transports c.harbours, d.transfers, or e. receives, a person or persons, by-
    • ​using threats,
    • using force, or any other form of coercion,
    • by abduction,
    • by practising fraud, or deception,
    • by abuse of power,
    • by inducement, including the giving or receiving of payments or benefits, in order to achieve the consent of any person having control over the person recruited, harboured, transported, transferred, or received, commits the offence of trafficking. 
• The expression "exploitation" shall include any act of physical exploitation or any form of sexual exploitation or practices similar to slavery, servitude, or the forced removal of organs.
• The consent of the victim is immaterial in the determination of the offence of trafficking.

The correct answer is Multiple fission.

• The ability of a cell to divide into several cells during reproduction in Plasmodium is called multiple fission.​

Key Points

• Cell- It is the structural and functional unit of life.
  • It is first discovered by Robert Hooke in 1665.
• According to Schwann and Schleiden, All new daughter cells are formed from pre-existing cells.
• Reproduction is a distinctive characteristic of Living Organisms.
  • Living organisms reproduce and give rise to similar organisms of the same species.
• Fission is the process in which a single cell divides into two or more than two cells.
  • When a single cell divides into two cells called Binary fission.
  • When a single cell divides into many cells called Multiple fission.

Important Points

• Plasmodium after feeding on RBCs undergoes asexual reproduction which is called schizogony or multiple fission. 
• In multiple fission, plasmodium divides into many cells.

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