(a) What is the true shape of the earth?
Answer
Earth is slightly flattened at the North and the South Poles and bulge in the middle.
(b) What is a globe?
Answer
Globe is a true model (miniature form) of the earth.
(c) What is the latitudinal value of the Tropic of Cancer?
Answer
The Tropic of Cancer lies at 231⁄2o North of the equator.
(d) What are the three heat zones of the Earth?
Answer
The three heat zones of the Earth are Torrid Zone, Temperate Zone and Frigid Zone.
(e) What are parallels of latitude and meridians of longitude?
Answer
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 North Pole to South Pole are called meridians of longitude.
(f) Why does the torrid zone receive maximum amount of heat?
Answer
Torrid zone lies between the Tropic of Cancer and Tropic of Capricorn. The mid-day sun is exactly overhead at least once a year on all latitudes in this area. Therefore, torrid zone receive maximum amount of heat.
(g) Why is it 5.30 p.m. in India and 12.00 noon in London?
Answer
London is situated at 0o longitude i.e., Greenwich mean time (GMT). India located east of Greenwich at 82° 30' E is 5 hours and 30 minutes ahead of GMT. Sp, when it is 5.30 p.m. in India, it is 12.00 noon in London.
2. Tick the correct answers.
(a) The value of the prime meridian is
(i) 90°
(ii) 0°
(iii) 60°
► (ii) 0°
(b) The frigid zone lies near
(i) the Poles
(ii) the Equator
(iii) the Tropic of Cancer
► (i) the Poles
(c) The total number of longitudes are
(i) 360
(ii) 180
(iii) 90
► (i) 360
(d) The Antarctic circle is located in
(i) the Northern hemisphere
(ii) the Southern hemisphere
(iii) the Eastern hemisphere
► (ii) the Southern hemisphere
(e) Grid is a network of
(i) parallels of latitudes and merdians of longitudes
(ii) the Tropic of Cancer and the Tropic of Capricorn
(iii) the North Pole and the South Pole
► (i) parallels of latitudes and merdians of longitudes
3. Fill in the blanks.
(a) The Tropic of Capricorn is located at _________________.
► 23 1⁄2o south of the Equator.
(b) The Standard Meridian of India is ____________________.
► 821⁄2o E.
(c) The 0° Meridian is also known as ____________________.
► Prime Meridian
(d) The distance between the longitudes decreases towards___________.
► poles
(e) The Arctic Circle is located in the ____________ hemisphere.
► Northern