Question Discussion & Solution

The correct answer is Projector.

Important Points

•  Projector
  • ​A projector is an optical device that projects an image (or moving images) onto a projection screen.
  • There are four main types including;
    • ​DLP: Digital Light Processing, 
    • LCD: Liquid Crystal Display
    • LCOS: Liquid Crystal on Silicon. 
    • Laser projectors 

​Key Points

• Output device
  • An output device is any hardware device used to send data from a computer to another device or user.
  • Some of the output devices are:
    • Visual Display Units (VDU)
    • Monitor, Printer,
    • Graphic Output devices,
    • Plotters, Speakers.

Additional Information

• Mouse
  • A computer mouse is a hand-held pointing device that detects two-dimensional motion relative to a surface. 
• Optical Character Recognition, or OCR
  • ​It is a technology that enables to convert different types of documents, such as scanned paper documents, PDF files or images captured by a digital camera into editable and searchable data.
• Webcam
  • A webcam is a camera that connects to a computer.
  • It captures still pictures or motion video.
  • with the aid of software, can transmit its video on the Internet in real-time. 

The correct answer is option 2 i.e. Character, Field, Record, File, Database.

Additional Information

• A character is any letter, number, space, punctuation mark, or symbol that can be typed on a computer.
• The word "computer," for example, consists of eight characters.
• The term "fields" refers to columns or vertical categories of data.
• A record is composed of fields and contains all the data about one particular person,
• A file is the common storage unit in a computer, and all programs and data are "written" into a file and "read" from a file.
• A database is an organized collection of structured information, or data, typically stored electronically in a computer system.
• A database is usually controlled by a database management system (DBMS).

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.

UPDATE -  the number of wetlands in India has increased to 42.

Key Points

The Ramsar Convention:

• Ramsar Convention, 1971: on Wetlands of International Importance especially as Waterfowl Habitat is an international treaty for the conservation and sustainable use of wetlands
• The Convention on Wetlands is an intergovernmental treaty that provides the framework for the conservation and wise use of wetlands and their resources.
• The Convention was adopted in the Iranian city of Ramsar in 1971 and came into force in 1975. Since then, almost 90% of UN member states, from all the world’s geographic regions, have acceded to become “Contracting Parties”.
• India is a party to the Ramsar Convention. India signed under it on 1st February 1982.
• Chilika Lake (Orissa) and Keoladeo National Park (Rajasthan) were recognized as the first Ramsar Sites of India
• Sundarbans is the largest Ramsar Site of India
• On 2nd February 2021, India’s first Centre for Wetland Conservation and Management has been set up in Chennai.
• There are 42 wetlands in India that have international importance and hence recognized as the Ramsar Sites in India. Ramsar Sites are wetlands that have international importance.

Three Pillars:

• ​Under the “three pillars” of the Convention, the Contracting Parties commit to:
  • work towards the wise use of all their wetlands;
  • designate suitable wetlands for the list of Wetlands of International Importance (the “Ramsar List”) and ensure their effective management;
  • cooperate internationally on transboundary wetlands, shared wetland systems, and shared species.

The Montreux record:

• The Montreux Record is a register of wetland sites on the List of Wetlands of International Importance where changes in ecological character have occurred, are occurring, or are likely to occur as a result of technological developments, pollution, or other human interference.
• It is maintained as part of the Ramsar List.

The given series is following-

For the first term 

15 + 20 = 35 

35 + 20 = 55

55 + 20 = 75

75 + 20 = 95

For the middle term

F + 2 = H

H + 2 = J

J + 2 = L

L + 2 = N

For the third term

35 + 35 = 70

70 + 35 = 105

105 + 35 = 140

140 + 35 = 175

Hence, the correct answer is 95 N 175.