1.
Option D
2.
Option A
3.
Because India is located East of Greenwich at 82 degree 30'E is 5 hours and 30 minutes ahead of GMT.
4.
Option B
5.
It is an imaginary line drawn on the Earth equidistant from the poles, dividing the earth into Northern and Southern hemispheres and constituting the parallel of latitude 0°.
6.
The area where the mid day Sun is exactly overhead at least once a year on all latitudes in between the Tropic of Cancer and the Tropic of Capricorn and therefore receives the maximum heat. This area is called Torrid Zone.
7.
Prime Meridian is an imaginary line that, similar to the Equator, divides the earth into eastern and western hemispheres. The Prime Meridian, as it passes through Greenwich, England, is considered 0 degrees longitude. It is sometimes referred to as the Greenwich Meridian and used as the basis for the world's time zones.
8.
The imaginary lines of reference drawn on Earth running from North Pole to South Pole and the distance between them are measured in degrees of Latitude.
9.
Option C
10.
All parallel circles drawn from the Equator up to the Poles are called Parallels of Latitudes and they are measured in degrees.
11.
Each degree is further divided into minutes, and minutes into seconds. They are semi circles and the distance between them decreases steadily polewards until it becomes zero at the Poles, where all meridians meet.
12.
As the Earth rotates from West to East, those places east of Greenwich will be ahead of Greenwich time and those to the West will be behind it.
13.
North Pole & South Pole.
14.
The local time of places which are on different meridians are bound to differ. For example, it will be difficult to prepare a time-table for Trains which cross several longitudes. In India, for instance, there will be a difference of about 1 hour and 45 minutes in the local times of Dwarka in Gujarat and Dibrugarh in Assam. It is therefore, necessary to adopt the local time of some central meridian of a Country as the Standard Meridian of the Country.
15.
Option B
16.
Option B
17.
Option A
18.
Both are situated on the same Latitude (i.e. 20 degree S)
19.
At any place, a watch can be adjusted to read 12 o'clock when the Sun is at the highest point in the Sky i.e. when its mid-day. The Time shown by such a watch will give the local time for that place.
20.
Areas lying between the Arctic circle and the North Pole in the Northern Hemisphere and the Antarctic Circle and the South Pole in the Southern Hemisphere, are very cold. It is because the Sun here does not rise much above the Horizon. Therefore, its rays are always slanting and provide less heat. These are, therefore, called Frigid zones.
