C. <u>A circle of circumference whose centre coincides with the centre of earth</u>.
Explanation:
Geodetics is the science that tells about the center of spherical circles whose center coincides with that of a complete sphere.
The great circle also known as the Orthodrome is a sphere whose center passes through the central points of a sphere thus all great circles have the same center and circumference as each other.
In pair of antipodal points which is infinitely form many great circles. The prime meridian 0 degree is an example of this greater circle. They are common for navigation and aviation.
Having an equatorial radius of 6378.137 km of dividing the earth into two equal parts of north and south zones.
The Suez Canal is a man-made waterway connecting the Mediterranean Sea to the Indian Ocean via the Red Sea. It enables a more direct route for shipping between Europe and Asia, effectively allowing for passage from the North Atlantic to the Indian Ocean without having to circumnavigate the African continent.
A geographer would collect a city's historical data about the census and the occurrences of natural disasters in order to study the impact of demographics and calamities on the geographical features of the region.
<u>Explanation:</u>
The discipline of Geography is made up of two broad classes. One is Physical Geography and the other is Human Geography.
These two classes are interdependent and their functioning is coherent.
The study of a region's Geography is incomplete without the studies of the region's demography and the occurrences of natural disaster in the region, for their impact on the regional geography is immense.
Adversity prompted the Somalis to test new ways of making money and former fishermen joined hands with the militia and unemployed youth to hijack vessels and demand ransom. This was the start of piracy in Somalia.
