CBSE Class-6 Geography notes 

Geography Chapter 2 Globe Latitudes and Longitudes

1.  Answer the following questions briefly:
(a) What is the true shape of the earth?
(b) What is the globe?
(c) What is the latitudinal value of the Tropic of Cancer?
(d) What are the three heat zones of the Earth?
(e) What are parallels of latitude and meridians of longitude?
(f) Why does the Torrid Zone receive the maximum amount of heat?

(g) Why is it 5.30 p.m in India when it is 12.00 noon in London?
Answers:
(a) The true shape of the Earth is geoid-earth like shape. In other words, it is orange shaped.
(b) Globe. Globe is the three dimensional model of the earth.
(c) 2312° N.
(d) (i) Torrid Zone
(ii) Temperate Zone
(iii) Frigid Zone.
(e) Parallels of Latitudes and Meridians of Longitudes:
Parallels of Latitudes:
All the parallel circles from the equator to the poles are called parallels of latitudes.
Meridians of Longitudes:
All the semi-circles which join north pole to south pole are termed as meridians of longitudes.
(f) Torrid Zone receives the maximum amount of heat because of the following reasons:

• The Sun shines perpendicular between Tropic of Cancer and Tropic of Capricorn throughout the year.
• Perpendicular sun rays give more heat than slanting sun rays.

(g) It is 5.30 p.m. in India when it is 12.00 noon in London because of the following reasons:

• London is located at 0° longitude while the time of 8212° E longitude is taken as standard time in India.
• There is a difference of 8212 between the longitude of London and the Standard Meridian of India (8212 E).
• Time in India is ahead of London. It is 4 minutes ahead at every longitude towards east.
• Hence time in India is ahead of London by 5.30 hours (4 x 8212 = 330 minutes or 5.30 hours).

2. Tick the correct answer:

(a)The value of the prime meridian is
(i) 90°                                (ii) 0°                                     (iii) 60°

(b)The frigid zone lies near
(i) the Poles                             (ii) the Equator        (iii) the Tropic of Cancer

(c)The total number of longitudes are
(i) 360                                       (ii) 180                                             (iii) 90

(d) The Antarctic Circle is located in
(i) the Northern Hemisphere
(ii) the Southern Hemisphere
(iii) the Eastern Hemisphere

(e) Grid is a network of
(i) parallels of latitudes and meridians of longitudes
(ii) the Tropic of Cancer and the Tropic of Capricorn
(iii) the North Pole and the South Pole

Answers: (a)—(ii), (b)-(i),(c)-(i), (d)-(ii), (e)-(i).

• Remark: Actually the number of longitudes is infinite. We can draw longitudes of any degree value. We show in diagrams distinct longitudes just for our convenience, e.g. the number of longitudes can be 360 (shown at gap of 1 degree), 180 (shown at every 2 degrees), and so on—as we wish.

3. Fill in the blanks.

1. The Tropic of Capricorn is located at…………………..
2. The Standard Meridian of India is…………………..
3. The 0° Meridian is also known as…………………..
4. The distance between the longitudes decreases towards ……………………….
5. The Arctic Circle is located in the……………….

Answers:

1. 23 1/2° S
2. 82 1/2° E
3. Prime Meridian
4. Prime Meridian
5. Northern