Knowledge Based Question Analysis

The question asks to recall a specific piece of information: "World is divided into how many spheres?". This type of question requires retrieving facts stored in memory.

Understanding Knowledge Based Questions

Knowledge based questions are designed to test your ability to remember and recall information, facts, definitions, concepts, and principles. They often start with words like 'What', 'When', 'Who', 'List', or 'How many'.

For example, the common spheres of the Earth that one might need to recall are:

• Lithosphere (Earth's solid outer part)
• Hydrosphere (All the Earth's water)
• Atmosphere (The layers of gases surrounding the Earth)
• Biosphere (All living organisms)

Knowing the number of these spheres requires factual recall, making it a knowledge-based question.

Evaluating Other Question Types

Let's look at why the other options aren't the best fit:

• Understanding based question: This would involve explaining the concept of Earth's spheres or describing what each sphere entails, not just recalling a number.
• Application based question: This would require using the knowledge about spheres in a new context, like predicting how changes in one sphere affect another.
• Skill based question: This would involve demonstrating a practical ability, perhaps related to mapping or analyzing data about the spheres, which isn't tested here.

Therefore, the question "World is divided into how many spheres?" directly tests the recall of factual information, fitting the definition of a knowledge based question.