Question Discussion & Solution

Saw is used for cutting wood.

Similarly, Scythe is used for cutting Grass.

Key Points

A binary tree is a tree data structure in which each node has at most two child nodes.

The number of subtrees of a node is called the degree of the node. In a binary tree, all nodes have degrees o, 1, and 2. 

The degree of a tree is the maximum degree of a node in the tree. A binary tree is of degree 2. The number of nodes of degree 2 in Tis "n-1".

Hence the correct answer is n-1.

The correct answer is Virendra Kumar Singhal.

Key Points

• Virendra Kumar Singhal has not been Chief Justice of Rajasthan High Court.

Additional Information 

• The Rajasthan High Court: 
  • It was established on 29 August 1949 under the Rajasthan High Court Ordinance, 1949.
  • The seat of the court is at Jodhpur and the bench at Jaipur.
  • The court has a sanctioned judge strength of 50.
  • The High Court of Rajasthan was founded in 1949 at Jaipur and was inaugurated by the Rajpramukh, Maharaja Sawai Man Singh on 29 August 1949, later on after complete integration of Rajasthan in 1956 it was moved to Jodhpur with the recommendation of the Satyanarayana Rao committee.

Important Points

• The First Chief Justice of Rajasthan High Court was Kamala Kant Verma.
• Present Chief Justice of Rajasthan High Court - Indrajit Mahanty

The correct answer is Single-User Operating System.

Important Points

• Single-User Operating System
  • Performs a single task for Single-user.
  • This operating system is designed to manage the computer so that one user can effectively do one thing at a time.
  • Examples include Microsoft Windows.

Additional Information

• The different types of Operating System:
• Batch Operating System
  • There is no direct communication between the computer and the OS.
  • There is an intermediate, the Operator.
  • The operator distributes the work into batches.
• Real-Time Operating System
  • The processing time is very small between the user’s command and the output such that there is no operator.
• Time-Sharing Operating System
  • Multiple people at various computers can use a program at the same time.
• Distributed Operating System
  • When two or more systems are connected to each other and one can open each other's files.
• Embedded Operating System
  • These special Operating systems are built into larger systems.
  • They are limited to single specific functions like an ATM.
• Network Operating System
  • They have one main server which is connected to other client servers.
  • It provides a secure operating system for working with multiple users.

Concept:

• Food chain:​ The sequence of living organisms in a community in which one organism consumes another organism to transfer food energy is called a food chain.
• In simple words, A list of organisms showing 'who eats whom' is called the food chain.
• The food can be transferred from one organism to the other through the food chain.
• Each step in the food chain is represented by a trophic level.
• Producers occupy the base of the food chain, producers are followed by Consumers → Secondary consumers → Tertiary consumers → Decomposers.

Explanation:

• Humans occupy the position of consumers in a food chain.
• The human can be divided into two types of consumers - Primary consumer & Secondary consumer.
• Primary Consumer - When humans derive their nutrition directly from the producers (green plants) in the form of fruits & vegetables.
• Secondary Consumer - When humans derive the nutrition indirectly by eating primary consumers like goat, cow & buffalo.