Exercises
(A) Place a tick mark 3 against the correct option.
1. What term is used for the imaginary east-west horizontal lines on the Earth?
✅ Parallels
2. What is the shape of the meridians?
✅ Semicircular
3. What do the parallels of latitude and meridians of longitude together form on the globe?
✅ Graticule
4. How many parallels are there in the northern hemisphere?
✅ 90
5. Which circle forms the eastern and western hemispheres?
✅ 0° Prime Meridian and 180° Meridian
6. Which circle appears as a point on the globe?
✅ North / South Pole
7. How many places on the Earth may be located on the 45°N parallel?
✅ Many
(B) Observe a globe and examine the following statements. Correct the wrong ones.
1. Parallels of latitude lie parallel to the Prime Meridian.
❌ Wrong → Parallels of latitude are parallel to the Equator, not the Prime Meridian.
2. All parallels of latitude converge at the equator.
❌ Wrong → Parallels of latitude never meet; they remain parallel.
3. Parallels and meridians are imaginary lines.
✅ Correct
4. 8° 4′ 65” is a north meridian.
❌ Wrong → The correct term is longitude, not meridian.
5. Meridians are parallel to each other.
❌ Wrong → Meridians meet at the poles, so they are not parallel.
(C) Find the correct graticule out of the following and put a tick mark ✔ against it.
The correct graticule is the one where parallels are horizontal and meridians are vertical semicircles.
(D) Answer the following
1) How will you express the latitude and longitude of the North Pole?
Answer : The North Pole is located at 90°N latitude. Since all the meridians (longitudes) meet at the poles, the longitude of the North Pole can be any value between 0° and 180°.
2) How much is the angular distance between the Tropic of Cancer and the Tropic of Capricorn?
Answer : The Tropic of Cancer is at 23.5°N latitude, and the Tropic of Capricorn is at 23.5°S latitude. The total angular distance between them is 47° (23.5° + 23.5° = 47°).
3) Using a globe, write down the names of the countries through which the Equator passes.
Answer : The Equator passes through several countries. Some of them include Ecuador, Brazil, Gabon, Congo, Kenya, Indonesia, and others. These countries experience warm climates throughout the year due to their location along the Equator.
4) Write down the main uses of the graticule.
Answer : The graticule is a network of latitudes and longitudes that helps in finding the exact location of any place on Earth. It is useful for map reading, navigation, and GPS systems. It also helps in dividing the Earth into different zones based on climate and time.
(E) Complete the following table.
Characteristics | Parallels of Latitude | Meridians of Longitude |
---|---|---|
Shape | Circular lines | Semicircular lines |
Size | Largest at the Equator, smaller near poles | All meridians are equal in length |
Distance | Distance between two parallels is equal everywhere | Distance between meridians decreases towards the poles |
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