Which one of the following is the longest Latitude ?
- A.90 degree Latitude
- B.23.5 degree Latitude
- C.0.0 degree Latitude
- D.66.5 degree Latitude
Correct answer
Explanation
The correct answer is C, 0.0 degree Latitude. The 0° latitude is the Equator, the largest circle that can be drawn on the globe, so it is the longest parallel.
Lines of latitude are circles drawn parallel to the Equator. Because the Earth is round, each parallel grows smaller as it moves towards a pole. The Equator runs about 40,075 km around the Earth and is a great circle, dividing the globe into the Northern and Southern Hemispheres. The parallel at 60° is only about half as long as the Equator, and at the poles the circle shrinks to a point.
A is wrong because 90° latitude is the North or South Pole, which is a point, not a line. B is wrong because 23.5°, the Tropic of Cancer or Capricorn, is shorter than the Equator. D is wrong because 66.5°, the Arctic or Antarctic Circle, is shorter still.
Exam tip: parallels shrink from the Equator (longest) to the poles (points); all meridians are of equal length.
Practice Questions
View allLoktak lake is situated in the State of
- A.Sikkim
- B.Manipur
- C.Odisha
- D.Mizoram
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Loktak Lake lies south of Imphal in Manipur and is the largest freshwater lake in North-East India. Loktak is famous for its phumdis, floating masses of soil, vegetation and decaying organic matter that drift on the water.
Read the full explanation →The formation of 'tors' on small rocky hills is associated with which among the following?
- A.Granite
- B.Limestone
- C.Alluvial
- D.Dolomite
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Tors are piles of rounded, weathered blocks standing on hilltops, and they form typically in granite. Granite cools deep underground and develops a network of joints, or cracks.
Read the full explanation →Which one of the following statements is NOT correct ?
- A.Bokaro steel plant is located in Damodar river basin
- B.Jamshedpur steel plant is located on the confluence of Damodar and Barakar
- C.Salem steel plant is located on the bank of Kaveri River
- D.Bhilai steel plant obtains water from Tandula reservoir
Show answer
Jamshedpur stands at the meeting point of the Subarnarekha and Kharkai rivers, not the Damodar and Barakar. Jamsetji Tata chose Sakchi, later named Jamshedpur, and the Tata Iron and Steel Company began production there in 1912.
Read the full explanation →Which of the following is/are warm ocean current(s) ? 1. Alaska Current 2. Agulhas Current 3. Falkland Current 4. West Australian Current Select the answer using the code given below :
- A.1 only
- B.1 and 2
- C.3 and 4
- D.4 only
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The Alaska Current and the Agulhas Current carry warm water, while the Falkland and West Australian currents are cold. A useful rule is that currents flowing from the tropics towards the poles are warm and those flowing from high latitudes towards the equator are cold.
Read the full explanation →Consider the following statements regarding the nature of rocks : I. Rocks are aggregates of one or more minerals. II. Granite is softer than soapstone. III. Gabbro is black and quartzite can be milky white. IV. Sedimentary rocks are related to foliation. Which of the statements given above are not correct ?
- A.I and II
- B.I and III
- C.II and IV
- D.II and III
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Granite is far harder than soapstone, and foliation is a feature of metamorphic rocks, not sedimentary ones, so these two statements are wrong.
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