Which option is a correct comparison with same units in studying India's size?
Answer and explanation
Correct answer: 15,200 km land boundary and 7,516.6 km coastline
Option A is correct because both the land boundary and the coastline are lengths, and both are expressed in kilometres. Their magnitudes can therefore be compared directly. In option B, area is in square kilometres while boundary length is in kilometres, so the units are different. Exam tip: before comparing two values, check that they represent the same physical quantity in the same unit.
Frequently asked questions
What is the correct answer to this question?
15,200 km land boundary and 7,516.6 km coastline
Why is this the correct answer?
Option A is correct because both the land boundary and the coastline are lengths, and both are expressed in kilometres. Their magnitudes can therefore be compared directly. In option B, area is in square kilometres while boundary length is in kilometres, so the units are different. Exam tip: before comparing two values, check that they represent the same physical quantity in the same unit.
Which subject and chapter does this question cover?
This is a Class 9 Geography question. Chapter: India – Size and Location. Topic: Size.
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