Question Discussion & Solution

The correct answer is Spinning.

• The process of making thread from the fibre is called Spinning.

Key Points

• Spinning is the process done as a major part of the textile industries.
  • It is the manufacturing process for creating polymer fibres.
  • In the Spinning process, fibres are drawn and twisted from the cotton mass which brings them together to form a yarn
• Ring, Rotor, Air Jet are the different types of spinners used in the textile industries.

Additional Information

• Weaving is a method of textile production in which two different sets of yarns or threads are interlaced at right angles to form a fabric or cloth.
• Ginning is the process of removing the seeds and debris from cotton. 

The correct answer is Constellation.

• Ursa Major constellation lies in the northern sky. Its name means “the great bear,” or “the larger bear” in Latin.
• Ursa Major is the largest northern constellation and third largest constellation in the sky.
  • Its brightest stars form the Big Dipper asterism, one of the most recognizable shapes in the sky, also known as the Plough.
• Ursa Major contains seven Messier objects. It also contains 13 stars with confirmed planets.

Important Points

• The biggest known galaxy is IC 1101, which is 50 times the Milky Way's size and about 2,000 times more massive.
  • It is about 5.5 million light-years across.
• Our Sun (a star) and all the planets around it are part of a galaxy known as the Milky Way Galaxy.
  • A galaxy is a large group of stars, gas, and dust bound together by gravity. The Milky Way is made up of about 90% dark matter, the matter which cannot be seen, and about 10% “luminous matter”, or matter that we can see with our eyes.
  • The solar system lies about 30,000 light-years from the galactic centre.

Additional Information

• Sirius, also known as the Dog Star or Sirius A, is the brightest star in Earth's night sky.
• The name means "glowing" in Greek.

The correct answer is Sunderban Delta.

• Sunderban Delta is the largest delta in India.

Key Points

• Sunderbans has spread over 1330.10 sq. km.
• It is formed by the Ganga and Brahmaputra rivers in West Bengal and Bangladesh. 
• Sundarbans is also known for the mangrove forest which is one of the largest such forests in the world.
• Sundarbans was included in the World Heritage site in 1987.
• East Flowing Rivers are known as Delta forming rivers
  • East flowing rivers do not form estuaries.
  • East flowing rivers fall in the Bay of Bengal.

Additional Information

• A delta is a depositional feature of a river which is formed at the mouth of the river. 
• Largest River without is Delta Narmada and Tapti.

Concept:

• Plants have different types of roots.
• Some store food, some breathe some hang from the branches.

Explanation:

• Roots are the underground structures that help in the absorption of water and minerals provide a proper anchorage to the plant parts, storage of reserve food material (Carrot, Radish), and synthesis of PGR (plant growth regulators).
• Sometimes roots get modified to perform different functions like storage of food, respiration, climbing, etc.
• These types of roots are called modified roots.
• Examples - prop root of the Banyan tree for providing support, Pneumatophores of Rhizophora, and Mangrove plants for respiration.

So, these statements are correct.

• To give support to the plant.
• To store food.
• To absorb water and minerals.

Thus, roots do not function to provide humus.

The correct answer is Anand Math.

• The National song of India, ‘Vande Matram’ has been taken from Anand Math.

Key Points

• Anand Math:
  • It was authored by Bankim Chandra Chatterjee.
  • The book was originally written in 1882.
  • Anandamath takes the reader back to Bengal in the clutches of the famine, the backdrop of the pre-independence struggle and the turmoil of human lives caught in this frame of time. 
  • It is considered one of the most remarkable works of the Bangla language and Indian literature.
  • Through the book, Bankim also gave us the song ‘VandeMataram’which became the rallying call for rebels.
  • The first two stanzas eventually became the National song of India.
  • One of the gems of Indian Literature, ‘Anandmath’ carries a deep sentiment of nationalism which was the essence of the freedom struggle.

Additional Information

• The 'Neel Darpan' published in 1860 portrays the plight of indigo cultivators was created by Deenbandhu Mitra.
• The first play ever commercially staged was Neel Darpan in 1872.
• It was translated by Micheal Madhusudan Dutta and it was published by