Consider the following statements regarding the International Date Line : 1. It is roughly 180° meridian, which deviates slightly East and West to avoid land areas surrounded by the Atlantic Ocean. 2. The date to the East of this line is (24 hours) earlier than to the West. Which of the statements given above is/are correct?
- A.1 only
- B.2 only
- C.Both 1 and 2
- D.Neither 1 nor 2
Correct answer
Explanation
The correct answer is B, 2 only. The date just east of the line is one day behind the date just west of it, but the line runs through the Pacific Ocean, not the Atlantic.
Statement 1 is wrong: the International Date Line roughly follows the 180° meridian through the Pacific Ocean, bending around Chukotka in Russia, the Aleutian Islands and island groups such as Kiribati, Fiji and Tonga so that no country is split between two dates. Statement 2 is correct: places east of the line, like American Samoa and Hawaii, are on the earlier date, so a traveller crossing eastward gains a day and one crossing westward loses a day.
A is wrong because statement 1 names the wrong ocean.
C is wrong for the same reason.
D is wrong because statement 2 is correct.
Exam tip: crossing the Date Line eastward, repeat a day; westward, skip a day. The line lies in the Pacific.
Practice Questions
View allConsider the following places of India :
1. Itanagar
2. Imphal
3. Agartala
4. Aizawl
Which one of the following is the correct chronological order of the above places in terms of sunrise time?
- A.3-2-1-4
- B.2-1-4-3
- C.1-4-3-2
- D.4-3-2-1
Show answer
The sun rises first in the place farthest east, so the order follows longitude: Imphal, Itanagar, Aizawl and then Agartala.
Read the full explanation →"Viticulture" is a common feature of which one of the following Australian cities ?
- A.Adelaide
- B.Darwin
- C.Hobart
- D.Brisbane
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Viticulture, the growing of grapes, is a hallmark of Adelaide, which is surrounded by Australia's best-known wine regions. Adelaide, the capital of South Australia, has a Mediterranean climate with hot, dry summers and mild, wet winters, the conditions grapevines like best.
Read the full explanation →Which of the following statements regarding Barchan is/are correct ?
1. It is a crescent shaped mound of sand, which is deposited by the wind blowing constantly from one direction in a desert.
2. The windward side has a convex steep slope with maximum height at the centre.
3. Two ends of Barchan are called horns and point opposite to the direction the wind blows.
Select the answer using the code given below :
- A.1 only
- B.1 and 2 only
- C.2 and 3 only
- D.1, 2 and 3
Show answer
A barchan is a crescent-shaped sand dune built by wind from one steady direction, but its windward slope is gentle and its horns point downwind.
Read the full explanation →Which part of India has the Kalakot tertiary coal field ?
- A.Brahmaputra river basin of Assam
- B.Damodar river basin of Jharkhand and West Bengal
- C.Himalayan mountain region
- D.Cardamom hills in Kerala
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Kalakot lies in the Reasi district of Jammu and Kashmir, in the foothills of the Himalaya. India's coal is of two ages.
Read the full explanation →National Water Academy, a centre of excellence in training and capacity building in water resource, is located at
- A.New Delhi
- B.Kolkata
- C.Pune
- D.Chennai
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The National Water Academy functions at Khadakwasla in Pune, Maharashtra, under the Central Water Commission. The academy began in 1988 as the Central Training Unit of the Central Water Commission and was renamed the National Water Academy in 1997.
Read the full explanation →