1: Answer the following questions briefly.

Question a:What is the true shape of the Earth?
Answer:- Earth is not a sphere it is slightly flattened at the north and south pole and bulge in the middle.

Question b:What is a globe?
Answer:- Globe is a true model (Miniature form) of Earth. The globe is not fixed. It can be rotated the same way as a topspin or a potter’s wheel is rotated. On the globe countries and continents and oceans are shown in their correct size

Question c: What is the latitudinal value of the Tropic of Cancer?
Answer:- The latitudinal value of tropic of cancer is 23 1/2° North in the Northern Hemisphere.

Question d:What are the three heat zones of the Earth?
Answer:- There are three types of heat zones in the Earth they are, Torrid Zone Temperature zone, Frigid zone.

Question e:- What are the parallels of latitude and meridians of longitudes?
Answer: All parallel circles from the equator up to the poles are called parallels of latitudes.  The lines of reference running from the north pole are called meridians of longitudes.

Question f: Why does the Torrid Zone receive the maximum amount of heat?
Answer:- The area between tropic of cancer and tropic of Capricorn The midday sun is exactly overhead at least once in a year on all latitudes in this area receives the maximum amount of heat

Question g:- Why is it 5.30 P.M. in India and 12.00 noon in London?
Answer:-  In India, the longitude of 821/2° E (82° 30E) is treated as the standard meridian. The local time at this meridian. The local time at this meridian is taken as the standard meridian for the whole country. It is known as the Indian Standard Time (IST) India located east of Greenwich at 82° 30E in 5 hours and 30 minutes ahead of GMT so it will be 5:30 in India when it is 2 noon in London

Ckick Here :- chapter- 1 The Earth in the Solar System

Important Latitudes and Heat Zones


2: Tick the correct answers.

(a) The value of the Prime Meridian is
(i) 90°
Ans:- (ii) 0°
(iii) 60°

(b) The frigid Zone lies near
(i) the Poles
Ans:- (ii) The equator
(iii) The tropic of Cancer

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

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

(e) A grid is a network of
Ans:- (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.

3: Fill in the blanks.

(a) The Tropic of Capricorn is located at 23 1/2° S in the southern Hemisphere.
(b) The Standard Meridian of India is 82 1/2 ° E (82° 30E).
(c) The 0° Meridian is also known as Greenwich Meridian.
(d) The distance between the longitudes decreases towards Poles.
(e) The Arctic Circle is located in the Northern Hemisphere.