Question Discussion & Solution

The correct answer is Mercury.

Key Points

• Mercury is used in thermometers because it remains in liquid form throughout a wide range of temperatures i.e -37.89 degrees Fahrenheit to 674.06 degrees Fahrenheit.
• The mercury thermometer was invented by physicist Daniel Gabriel Fahrenheit in Amsterdam.
• Mercury has a greater coefficient of thermal expansion than alcohol. 
• A thermometer with alcohol is used to measure low temperature because its freezing point is low i.e -1170C.
• It is Impossible to measure high temperatures because it’s a low boiling point.
• The thermometer with mercury cannot be used to measure the very low temperature because its freezing point is high i.e -400C.
• Mercury is the only one in liquid state at room temperature.
• It's used in thermometers because it has a high coefficient of expansion.
• It also has a high boiling point which makes it very suitable to measure higher temperatures. 
• It has a shiny appearance and doesn't stick to the glass surface of the glass.

The correct answer is Rana Kumbha.

• Rana Kumbha is related to the Kumbhalgarh festival of Rajasthan.

Key Points

• Kumbhalgarh festival:
  • The Kumbhalgarh Festival is named after Rana Kumbha who was a patron of fine arts, architecture, and learning. 
  • It is organized at the Kumbhalgarh Fort, Chittorgarh.
  • The festival is organized by the Department of Tourism of the state to promote the culture and heritage of Rajasthan. 
• Rana Kumbha (1433 AD-1468 AD):
  • He was the greatest ruler of Mewar.
  • He built the famous Vijay Stambh at Chittorgarh to commemorate his victory over Mahmud Khilji of Malwa.

Additional Information

The correct answer is ​Uttar Pradesh.

• Uttar Pradesh is the highest milk-producing state of India.

Key Points

• It produces around 18% of the country's total milk production.
• It is followed by Rajasthan which produces 11%, Andhra Pradesh producing 10%, Gujarat at 8% and Punjab produces 7%.
• India produces around 146 million MT of milk and is the largest producer of milk worldwide.
• Indian Dairy market is considered to be the largest and fastest-growing market in the world.
• India also exports around 0.2 billion USD which includes products like skimmed milk powder korma cream etc.
• The major countries are UAE, Bangladesh and other Southeast Asian countries.

The correct answer is cookie.

Key Points

• A cookie is a small text file (up to 4 KB) created by a website that is stored in the user's computer temporarily for only that session or permanently in storage.
  • Cookies provide a way for the website to recognize you and track your preferences.
  • Cookies are typically used to "maintain the state" of the browser session. For example, users can place items in a shopping cart, switch to another page or another site, and when they return, the site recognizes them and the current state of the cart.
  • Cookies consist of a series of URLs (addresses) for which they are valid. When the web browser or other HTTP application again sends a request to the webserver containing those URLs, it sends it along with the associated cookies.
  • For example, if your user ID and password are stored in a cookie, this saves you from typing the same information over and over again the next time you access that service.
  • Cookies allow the website to customize the pages and create a custom experience for each individual.

Additional Information

• Malware
  • Malware is malicious software intended to cause damage to a computer or network.
  • Types of malware include viruses, worms, spyware, and ransomware.
  • Malware can find its way onto computers when a user clicks a link or email attachment that installs malicious software.
• Bug
  • A bug computer definition is referred to as a failure or a flaw in the software program.
  • A Bug produces an incorrect or undesired result that deviates from the expected result or behaviour.
  • When you add two numbers using this app and if it shows you a wrong total, then we can say this app has a bug.
• Cache
  • The cache is the temporary memory officially termed "CPU cache memory".
  • "Cache" is also used to refer to any temporary collection of data, either in hardware or software.

Hence, option 4 completes the pattern in question figure.