Q1. Answer the following questions briefly.
(a) What is the true shape of the Earth?
Ans: The Earth is not a perfect sphere. It is slightly flattened at the North and the South Poles and bulge in the middle.
Shape of Earth
(b) What is a globe?
Ans: A globe is a spherical figure which is a miniature model of earth. It gives us a three-dimensional view of the whole Earth by showing distances, directions, areas, etc. Globes are available in a variety of sizes and types, like the terrestrial globe and the celestial globe.
Globe
(c) What is the latitudinal value of the Tropic of Cancer?
Ans: The Tropic of Cancer lies at 23½º North of the Equator.
Tropic of Cancer
(d) What are the three heat zones of the Earth?
Ans: The three heat zones of the Earth are Torrid Zone, Temperate Zone and Frigid Zone.
Heat Zones of Earth
(e) What are parallels of latitude and meridians of longitude?
Ans: All imaginary parallel circles from the equator to the poles are called parallels of latitude. The imaginary set of semi-circle lines that run from the North Pole to the South Pole are called meridians of longitude.
Latitudes & Longitudes
(f) Why does the Torrid zone receive maximum amount of heat?
Ans: The Sun shines perpendicular between the Tropic of Cancer and the Tropic of Capricorn throughout the year. Perpendicular sun rays give more heat than slanting sun rays. Therefore, the Torrid Zone receives the maximum amount of heat.
Torrid Zone
(g) Why is it 5.30 p.m. in India and 12.00 noon in London?
Ans:
Q2. Choose the correct answers.
(a) The Value of the Prime Meridian Is
(i) 90 °
(ii) 0°
(iii) 60°
Ans: (ii) 0°
The Prime Meridian is the reference line for measuring longitude, and its value is 0°
(b) The Frigid Zone Lies Near
(i) The Poles
(ii) The Equator
(iii) The Tropic of Cancer
Ans: (i) The Poles
The Frigid Zone is located near the poles, where the sun’s rays are slanting, resulting in very cold temperatures.
(c) The Total Number of Longitudes are
(i) 360
(ii) 180
(iii) 90
Ans: (ii) 180
Longitudes are semicircles that meet at the poles, and there are 180 degrees of longitude east and 180 degrees west of the Prime Meridian.
(d) The Antarctic Circle is Located in
(i) The Northern hemisphere
(ii) The Southern hemisphere
(iii) The Eastern hemisphere
Ans: (ii) The Southern hemisphere
The Antarctic Circle is situated in the Southern Hemisphere, at 66½° south of the equator.
(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
Ans: (i) Parallels of latitudes and Meridians of longitudes
A grid is formed by the intersection of parallels of latitude and meridians of longitude, helping in the precise location of places on the globe.
Q3. Fill in the blanks.
(a) The Tropic of Capricorn is located at _____.
Ans: 23.5 Degrees south of the Equator
(b) The Standard Meridian of India is _____.
Ans: 82½ Degrees E
(c) The 0° Meridian is also known as _____.
Ans: Prime Meridian
(d) The distance between the longitudes decreases towards _____.
Ans: Poles
(e) The Arctic Circle is located in the _____ hemisphere.
Ans: Northern
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