Locating Places on the Earth — Hard

Q1. Consider the statements: (I) All parallels of latitude have the same length. (II) The Equator is the largest circle among the parallels. Which is correct?

• A. Only I is correct
• B. Both I and II are correct
• C. Only II is correct
• D. Neither is correct

Q2. Two cities differ in longitude by 30°. Using the chapter's reasoning, what is the difference in their local time?

• A. 30 minutes
• B. 1 hour
• C. 4 hours
• D. 2 hours

Q3. Why is the longitude 180° written simply as 180°, without adding 'E' or 'W'?

• A. Because 180°W and 180°E are the same longitude
• B. Because it lies on the Equator
• C. Because it is the Prime Meridian
• D. Because longitude is never measured beyond 90°

Q4. A ship crosses the International Date Line travelling eastward. According to the chapter, what must the crew do to the date?

• A. Add one day (e.g., Sunday to Monday)
• B. Subtract one day (e.g., Monday to Sunday)
• C. Keep the date unchanged
• D. Change the date by one week

Q5. The statement 'Delhi lies at 29°N latitude and 77°E longitude' is an example of

• A. Measuring distance with a scale
• B. Reading a thematic map
• C. Using two coordinates to fix a location
• D. Finding local time

Q6. Assertion (A): In Assam, the sun sets earlier than in Gujarat. Reason (R): Both states follow the same Indian Standard Time despite differing in longitude. Choose the correct option.

• A. Both A and R true, R explains A
• B. A true, R false
• C. A false, R true
• D. Both A and R true, R does not explain A

Q7. On the India map (Fig. 5.2) a ruler 2.5 cm long marked '500 km' is the scale. Using it, what real distance does 5 cm represent?

• A. 1000 km
• B. 500 km
• C. 250 km
• D. 2500 km

Q8. Using a map where the N-arrow points up, a place X is directly below another place Y. In which direction is X from Y?

• A. North
• B. South
• C. East
• D. West

Q9. Which statement about the South Pole's latitude is correct?

• A. It is 90°N
• B. It is 0°
• C. It is 90°S
• D. It is 180°

Q10. Consider: (I) A meridian of longitude is a half-circle from pole to pole. (II) Its length is half that of the Equator. Which is correct?

• A. Only I
• B. Only II
• C. Neither
• D. Both I and II

Q11. When it is 12 noon at Greenwich, what is the local time at 45°W?

• A. 9 am
• B. 3 pm
• C. 12 noon
• D. 6 am

Q12. Assertion (A): The Prime Meridian divides the Earth into Eastern and Western Hemispheres. Reason (R): The Prime Meridian is marked as 0° longitude. Choose the correct option.

• A. Both A and R true, R does not explain A
• B. Both A and R true, R explains A
• C. A true, R false
• D. A false, R true

Q13. Why did the chapter note that some ancient cities on the map lie a little away from the Ujjayinī meridian rather than exactly on it?

• A. Because Ujjayinī had no astronomers
• B. Because India had no prime meridian
• C. Because measuring longitude needed accurate timekeeping, which was less precise then
• D. Because the Greenwich Meridian replaced it in 1884

Q14. Why is the International Date Line described as being only 'approximately' at 180° longitude?

• A. Because longitude cannot reach 180°
• B. Because it follows the Equator
• C. Because it passes through Greenwich
• D. Because it deviates in places to avoid dividing some countries into two different days

Q15. On the world time-zone map (Fig. 1.8), why are the lines dividing time zones not perfectly straight?

• A. Because they respect each country's standard time and tend to follow international borders
• B. Because the Earth is flat
• C. Because the Equator bends them
• D. Because they follow rivers