Exercise - Question:
Q1. Answer the following questions briefly.
(a) What is the true shape of the Earth ?
Ans. The Earth looks like an orange, bulging on the sides and slightly flat at the top and bottom. The true shape of the Earth is a geoid.
(b) What is a globe ?
Ans. A globe is a three- dimensional representation of the Earth.
(c) What is the latitudinal value of the tropic of cancer ?
Ans. It is 23° North.
(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.
(e) What are parallels of latitude and meridians of longitude ?
Ans. All parallel circles from the equator up to the poles are called parallels of latitudes. Meridians of longitude are the lines of reference running from north pole to the south pole.
(f) Why does the torrid zone receive maximum amount of heat ?
Ans. Torrid zone is the area that receives maximum heat of Sun because the mid-day Sun is exactly overhead at least one in a year on all latitudes in between the tropic of Cancer and the Tropic of Capricorn.
(g) Why is it 5.30 p.m. in India and 12.00 noon in London.
Ans. The time difference between India and London is five and a half hours. India is located east of the Greenwich at 82° 30 E. So, it will be 5.30 p.m. in India when it is 12.00 noon in London.
The time difference between each degree of longitude is 4 minutes and since India is in the east, the time here will be ahead of the Greenwich time.
Q2. 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
Ans. (a) (ii), (b) (i), (c) (i), (d) (ii), (e) (i)
Q3. fill in the blanks.
(a) The Tropic of Capricorn is located at..........
(b) The Standard meridian of India is.........
(c) The 0° Meridian is also Know as.........
(d) The distance between the longitudes decreases towards..........
Ans. (a) 23
(b) 82°30 E
(c) prime Meridian
(d) poles
(e) Northern.
