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Which of the following is/are necessary conditions for defining a planet according to the International Astronomical Union?
1. It must Orbit the Sun
2. It has sufficient mass to be round or nearly round
3. It is not a satellite (moon) of another object
4. It has removed debris and small objects from the area around its orbit
Q. Select the correct answer using the codes given below:
  • a)
    1 and 2 only
  • b)
    2, 3 and 4 only
  • c)
    1 and 4 only
  • d)
    1, 2, 3 and 4
Correct answer is option 'D'. Can you explain this answer?
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Which of the following is/are necessary conditions for defining a plan...
The IAU resolves the planet's definition issue. It recognized a planet if it has the following characteristics. A planet is a celestial body that :
(a) is in orbit around the Sun,
(b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and
(c) not a satellite (moon) of another object, and
(d) has cleared the neighbourhood around its orbit.
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Which of the following is/are necessary conditions for defining a plan...
The answer is d because
according to the IAU it should be revolving around a star (sun).It should be having sufficient mass to have enough gravity to make the planet round as the gravity will pull the planet towards it's center making it round . It should not be revolving around any other planet (moon) and should have cleared its orbit with the help of its gravity .
since option D shows that all the options are correct it is the correct answer. please do upvote my answer
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Which of the following is/are necessary conditions for defining a plan...
Conditions for defining a planet according to the International Astronomical Union:

1. Orbiting the Sun:
- One of the necessary conditions for defining a planet is that it must orbit the Sun. This distinguishes planets from other celestial bodies such as moons or asteroids.

2. Sufficient mass to be round or nearly round:
- Another condition is that the object must have sufficient mass to be round or nearly round. This ensures that the object has enough gravity to pull itself into a spherical shape.

3. Not a satellite (moon) of another object:
- A planet should not be a satellite or moon of another object. This criterion helps in defining a planet as an independent celestial body that orbits the Sun.

4. Removed debris and small objects from the area around its orbit:
- The final condition for defining a planet is that it has removed debris and small objects from the area around its orbit. This criterion helps in distinguishing planets from other smaller celestial bodies that share their orbit.
Therefore, all four conditions - orbiting the Sun, having sufficient mass to be round, not being a satellite, and removing debris from its orbit - are necessary for defining a celestial body as a planet according to the International Astronomical Union.
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Directions for the following 8 (eight) questions:Read the following two passages and answer the items that follow each passage. Your answers to these items should be based on these passages only.Passage 1The classical realist theory of international relations has long dominated both academic institutions and the American government. Even at the birth of the nation, early political thinkers, such as Alexander Hamilton, promoted a realist view of international relations and sought to influence the actions of the government based on this perspective. While the classical realist school of international relations is not entirely homogeneous in nature, there are certain premises that all classical realists share.The primary principle underlying classical realism is a concern with issues of war and peace. Specifically, classical realists ask, what are the causes of war and what are the conditions of peace? The members of the classical realist school mainly attribute war and conflict to what is termed the security dilemma. In the absence ofany prevailing global authority, each nation is required to address its own security needs. However, each nations quest for security-through military buildups, alliances, or territorial defenses—necessarily unsettles other nations. These nations react to feelings of insecurity by engaging in their own aggressive actions, which leads other nations to react similarly, perpetuating the cycle.It is important to note that for realists, unlike idealists or liberal internationalists, international conflict is a necessary consequence of the structural anarchy that nations find themselves in. Whereas other schools may see international conflict as the result of evil dictators, historical chance, flawed socio political systems, or ignorance of world affairs, classical realists see war as the logical result of a system that by its nature lacks a true central authority.Hand in hand with this view of conflict as an inevitable condition of the global power structure is the realists view ofthe nation as a unitary actor. Because classical realists see international relations as a continuing struggle for dominance, the nation can not be viewed as a collection of individuals with disparate wants, goals, and ideologies. The realist view requires the formulation of a national interest, which in its simplest terms refers to the nations ability to survive, maintain its security, and achieve some level of power relative to its competitors.Realism is not without its critics, many of whom challenge the premise that war is the natural condition of international relations or that there can be a truly national interest. However, the realist school of international relations continues to shape foreign policy because ofthe successes it has had in describing real world interactions between nations.Q. It can be inferred from the passage that members ofthe classical realist school would be LEAST likely to support.

Passage 1The classical realist theory of international relations has long dominated both academic institutions and the American government. Even at the birth of the nation, early political thinkers, such as Alexander Hamilton, promoted a realist view of international relations and sought to influence the actions of the government based on this perspective. While the classical realist school of international relations is not entirely homogeneous in nature, there are certain premises that all classical realists share.The primary principle underlying classical realism is a concern with issues of war and peace. Specifically, classical realists ask, what are the causes of war and what are the conditions of peace? The members of the classical realist school mainly attribute war and conflict to what is termed the security dilemma. In the absence ofany prevailing global authority, each nation is required to address its own security needs. However, each nations quest for security-through military buildups, alliances, or territorial defenses—necessarily unsettles other nations. These nations react to feelings of insecurity by engaging in their own aggressive actions, which leads other nations to react similarly, perpetuating the cycle.It is important to note that for realists, unlike idealists or liberal internationalists, international conflict is a necessary consequence of the structural anarchy that nations find themselves in. Whereas other schools may see international conflict as the result of evil dictators, historical chance, flawed socio political systems, or ignorance of world affairs, classical realists see war as the logical result of a system that by its nature lacks a true central authority.Hand in hand with this view of conflict as an inevitable condition of the global power structure is the realists view ofthe nation as a unitary actor. Because classical realists see international relations as a continuing struggle for dominance, the nation can not be viewed as a collection of individuals with disparate wants, goals, and ideologies. The realist view requires the formulation of a national interest, which in its simplest terms refers to the nations ability to survive, maintain its security, and achieve some level of power relative to its competitors.Realism is not without its critics, many of whom challenge the premise that war is the natural condition of international relations or that there can be a truly national interest. However, the realist school of international relations continues to shape foreign policy because ofthe successes it has had in describing real world interactions between nations.Q. Which of the following, if true, would best support the classical realist theory of international conflict as it is described in the passage?

Passage 1The classical realist theory of international relations has long dominated both academic institutions and the American government. Even at the birth of the nation, early political thinkers, such as Alexander Hamilton, promoted a realist view of international relations and sought to influence the actions of the government based on this perspective. While the classical realist school of international relations is not entirely homogeneous in nature, there are certain premises that all classical realists share.The primary principle underlying classical realism is a concern with issues of war and peace. Specifically, classical realists ask, what are the causes of war and what are the conditions of peace? The members of the classical realist school mainly attribute war and conflict to what is termed the security dilemma. In the absence ofany prevailing global authority, each nation is required to address its own security needs. However, each nations quest for security-through military buildups, alliances, or territorial defenses—necessarily unsettles other nations. These nations react to feelings of insecurity by engaging in their own aggressive actions, which leads other nations to react similarly, perpetuating the cycle.It is important to note that for realists, unlike idealists or liberal internationalists, international conflict is a necessary consequence of the structural anarchy that nations find themselves in. Whereas other schools may see international conflict as the result of evil dictators, historical chance, flawed socio political systems, or ignorance of world affairs, classical realists see war as the logical result of a system that by its nature lacks a true central authority.Hand in hand with this view of conflict as an inevitable condition of the global power structure is the realists view ofthe nation as a unitary actor. Because classical realists see international relations as a continuing struggle for dominance, the nation can not be viewed as a collection of individuals with disparate wants, goals, and ideologies. The realist view requires the formulation of a national interest, which in its simplest terms refers to the nations ability to survive, maintain its security, and achieve some level of power relative to its competitors.Realism is not without its critics, many of whom challenge the premise that war is the natural condition of international relations or that there can be a truly national interest. However, the realist school of international relations continues to shape foreign policy because ofthe successes it has had in describing real world interactions between nations.Q. According to the passage, the formation of a national interest serves what function in the classical realist theory of war and peace?

Passage 1The classical realist theory of international relations has long dominated both academic institutions and the American government. Even at the birth of the nation, early political thinkers, such as Alexander Hamilton, promoted a realist view of international relations and sought to influence the actions of the government based on this perspective. While the classical realist school of international relations is not entirely homogeneous in nature, there are certain premises that all classical realists share.The primary principle underlying classical realism is a concern with issues of war and peace. Specifically, classical realists ask, what are the causes of war and what are the conditions of peace? The members of the classical realist school mainly attribute war and conflict to what is termed the security dilemma. In the absence ofany prevailing global authority, each nation is required to address its own security needs. However, each nations quest for security-through military buildups, alliances, or territorial defenses—necessarily unsettles other nations. These nations react to feelings of insecurity by engaging in their own aggressive actions, which leads other nations to react similarly, perpetuating the cycle.It is important to note that for realists, unlike idealists or liberal internationalists, international conflict is a necessary consequence of the structural anarchy that nations find themselves in. Whereas other schools may see international conflict as the result of evil dictators, historical chance, flawed socio political systems, or ignorance of world affairs, classical realists see war as the logical result of a system that by its nature lacks a true central authority.Hand in hand with this view of conflict as an inevitable condition of the global power structure is the realists view ofthe nation as a unitary actor. Because classical realists see international relations as a continuing struggle for dominance, the nation can not be viewed as a collection of individuals with disparate wants, goals, and ideologies. The realist view requires the formulation of a national interest, which in its simplest terms refers to the nations ability to survive, maintain its security, and achieve some level of power relative to its competitors.Realism is not without its critics, many of whom challenge the premise that war is the natural condition of international relations or that there can be a truly national interest. However, the realist school of international relations continues to shape foreign policy because ofthe successes it has had in describing real world interactions between nations.Q. The author most likely regards the classical realist theory of international relations with

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Which of the following is/are necessary conditions for defining a planet according to the International Astronomical Union?1. It must Orbit the Sun2.It has sufficient mass to be round or nearly round3.It is not a satellite (moon) of another object4.It has removed debris and small objects from the area around its orbitQ. Select the correct answer using the codes given below:a)1 and 2 onlyb)2, 3 and 4 onlyc)1 and 4 onlyd)1, 2, 3 and 4Correct answer is option 'D'. Can you explain this answer?
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Which of the following is/are necessary conditions for defining a planet according to the International Astronomical Union?1. It must Orbit the Sun2.It has sufficient mass to be round or nearly round3.It is not a satellite (moon) of another object4.It has removed debris and small objects from the area around its orbitQ. Select the correct answer using the codes given below:a)1 and 2 onlyb)2, 3 and 4 onlyc)1 and 4 onlyd)1, 2, 3 and 4Correct answer is option 'D'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Which of the following is/are necessary conditions for defining a planet according to the International Astronomical Union?1. It must Orbit the Sun2.It has sufficient mass to be round or nearly round3.It is not a satellite (moon) of another object4.It has removed debris and small objects from the area around its orbitQ. Select the correct answer using the codes given below:a)1 and 2 onlyb)2, 3 and 4 onlyc)1 and 4 onlyd)1, 2, 3 and 4Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is/are necessary conditions for defining a planet according to the International Astronomical Union?1. It must Orbit the Sun2.It has sufficient mass to be round or nearly round3.It is not a satellite (moon) of another object4.It has removed debris and small objects from the area around its orbitQ. Select the correct answer using the codes given below:a)1 and 2 onlyb)2, 3 and 4 onlyc)1 and 4 onlyd)1, 2, 3 and 4Correct answer is option 'D'. Can you explain this answer?.
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