Question Discussion & Solution

The correct answer is Silicon.

• An integrated circuit, or IC, is a small chip that can function as an amplifier, oscillator, timer, microprocessor, or even computer memory.
• An IC is a small wafer, usually made of silicon, that can hold anywhere from hundreds to millions of transistors, resistors, and capacitors.
• An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material that is normally silicon.

Key Points

• Silicon is a highly pure, easy to use, and cheap semiconductor, perfect for the now huge computer chip industry.
• Silicon is used because it can be used as either an insulator (doesn't allow electricity to flow) or a semiconductor (allows a little flow of electricity).

Important Points

The advantages of ICs :

• Extremely small in size.
• Low power consumption.
• Reliability.
• Reduced cost.
• Very small weight.
• Easy replacement. 

The correct answer is ​Ahar.

• Ahar civilization:
  • Ancient name
    • Tamravati Nagari
    • Aghatpur
    • Aghat Pur
  • Upnaam
    • Banas culture
    • Mounds of the dead

Key Points

• Ahar civilization-
  • It is situated in Udaipur.
  • It was excavated by-
    • Akshay Kirti Vyas in 1953 AD.
    • Ratan Chand Agrawal in 1956 AD.
    • Dheeraj Lal Sankaliya in 1961 AD.
  • It was known as Tamravati / Aghatpur / Dhulkot in ancient times.
  • It is also known as mounds of dead.
  • Ahar's houses were built with soft black stone and raw briquette.
  • One/ two/ six stoves were also found in Ahar's houses.
  • Red black ware also found there.
  • It was a copper-age civilization.
  • Agriculture and animal rearing were also done by Aharvasi.
  • Soil-made ox statue was also found there, which is known as the Banasiyal bull.

Additional Information

• Bairath civilization-
  • It is situated in Shahpura, Jaipur.
  • It is also known as Virat Nagar.
  • It is situated on the bank of the Banganga river.
  • It was firstly searched by Rai Bahadur Dayaram Sahani in 1936 AD.
  • Its survey and excavation were done by Kailash Dixit and Neel Ratna Banarjee. 
• Bagore civilization- 
  • It is situated in Bhilwara on the bank of the Kothari river.
  • It was excavated by Dr. V.N. Misra and Dr. L.S. Laishnik.
  • It has evidence of the most ancient animal rearing of India.
  • It is also known as the museum of primitive culture.
  • Swastik sign was used there for Vastu dosh prevention.
• Kalibanga civilization-
  • It was excavated by Amlanand Ghosh (firstly) in 1952 AD.
  • It was also excavated by Brijvasi Lal and Balkrishna Thapar in 1961-69 AD.
  • It is situated on the bank of the Ghaggar river.

The pattern followed here is:

Hence, “XRW” is the correct answer.

Option - 1 - Stream - A stream is a body of water with surface water flowing within the bed and banks of a channel.

Option - 2 - Canal - Canals are waterways channels, or artificial waterways, for water conveyance, or to service water transport vehicles.

Option - 3 - Brook - A small stream.

Option - 4 - Bridge - A bridge is a structure built to span a physical obstacle, such as a body of water, valley, or road, without closing the way underneath.

All except bridge contain water.

The correct answer is Palash.

• Palash tree is called the Flame of the Forest in Rajasthan.

Key Points

• Flame of the Forest, also known as Palash Tree is a very beautiful Indian tree with bright crimson orange-colored flowers.
  • Flame of the Forest/Palash Tree is such a tree when it is in its fullest beauty, it can change the view of the entire forest in a very graceful way.
  • From the month of January to March, the tree stands in all its glory with a lot of orange and vermilion flowers that cover the entire crown.
  • Palash trees are distinct as they have more flowers than leaves. This is the state flower of Madhya Pradesh as well as Jharkhand. 
  • Flame of the Forest/ Palash Tree is a medium-sized tree of around 6-12m in height.

Important Points

• Mahua:
  • ​Mahua flowers have many medicinal properties and are also used to make pickles, jams, and now ice creams as well.
• Khejri:
  • ​Khejri is one of the most common tree species found in India (in the dry regions of Rajasthan, Delhi, Gujarat, Punjab, and Madhya Pradesh), Afghanistan, Iran, and Pakistan.
  • It plays a vital role in preserving the ecosystem of arid and semi-arid areas, mainly in the Thar Desert.​