Since the upper part, the crust, was already cooled and solidified and hence it could not be subjected to further contraction. This resulted into possible gap between the upper and inner parts of the earth. Consequently, the upper part collapsed on the inner part and ultimately the earth began to assume the shape of a tetrahedron. Lowthian Green has further maintained that the earth has not been as yet changed into a complete tetrahedron rather as it is being cooled; it is proceeding towards attaining the true shape of a tetrahedron.
He has further opined that the earth cannot be in the shape of a real tetrahedron because of its structural variations and thus it is natural that there may be some deviations from a true tetrahedron. In a tetrahedron a plane face remains always opposite to an apex or coign. The apex or coign is more sharpened in the case of a real tetrahedron. In the case of the earth oceans represent the plane faces of the tetrahedron and land masses represent the apices or coigns but in the case of the earth the coigns are not much sharpened, rather they are flat and convex.
According to Lowthian Green oceans were created on the plane faces of the terrestrial tetrahedron whereas the coigns became continental masses. Four oceans e. These plane faces could retain water because of the fact that these were lower than the level of the apices or coigns of the terrestrial tetrahedron. Continents were formed along the apices or coigns of the tetrahedron. This fact may also be proved on the basis of an experiment.
If we submerge a tetrahedron in a hemisphere of water, the flat surfaces of the tetrahedron would retain water while the edges or apices or coigns will project above the water. Lowthian Green claimed to see a tetrahedral arrangement in the distribution of the continents and oceans in such a way that the earth was linked to a tetrahedron having four flat faces and standing on one point fig. Similarly, three vertical meridional edges represent North and South America, Europe and Africa and Asia while the lower point is represented by Antarctica.
Speaking of hot places in the northeast, Mizoram gives a good competition to the rest of country's hot places. And no wonder why. Champhai falls on the Indo-Myanmar border, and also the Tropic of Cancer. The town is important for the aforementioned reason and upon reaching there, you will be glad you visited. The town is a pretty one pretty hot too.
Solstice Facts. Right Angle means it's the wrong time to wander outside. Because it is hot, earth is at it's hottest. And on December 21, the same thing happens on the southern hemisphere, on the Tropic of Capricorn.
That's Winter Solstice for you. Since India has a vast longitudinal extent, 82 1 2 degrees has been chosen as the standard meridian of India. It has been done because of the centrality of longitude. The local time at the standard meridian is known as Indian Standard Time. India lies in the Northern Hemisphere and the Eastern Hemisphere. It lies in the southern part of Asia. On three sides, India is surrounded by sea. Owing to its strategic location, it plays a great role in trade and commerce of the world.
India is located completely in the Northern Hemisphere. It is in the southern part of the Asian continent and is to the north of the Indian Ocean. India is strategically located to support trade activities. It has a very long coastline of around 7, kilometres.
It is connected to the rest of the world via a sea route. India also has a land frontier of 15, kilometres. Thus, it will not be wrong to say that India has a prime location on the world map. Difrent parts of the same country actually has diffent time ast the same point. This confusion results in the need for a standard time to maintain a uniformity throughout the country. Since the longitudinal extent of India is almost 30 degrees, India has adopted It stands for Greenwich Mean Time.
It is calculated at The standard meridian passes through Allahabad in India. The standard meridian passes through Greenwich near London. For example, if it is 12 pm noon in London, then it will be pm in India. The Earth has been divided into longitudes so that the time of any place can be calculated. Three hundred and sixty degrees are divided into twenty-four hours of time period. So, one degree accounts for 4 minutes. The standard time of India is calculated at 82 1 2 o east of Greenwich.
Sunrise is accordingly calculated in this hemisphere. Hence, the meridians in this hemisphere are ahead of GMT. On multiplying the meridian 82 1 2 o with 4 minutes, we get 5 hours and 30 minutes. India has a vast longitudinal stretch, and the local time calculated at every meridian is different. Since this might lead to confusion regarding the time, a standard meridian was chosen to calculate the time of the whole country.
The standard meridian is also necessary for commercial, travel and logistical purposes within the country. The reorganisation of states on the basis of language is a complex issue. On one hand, it provides homogeneity to the local administration where coherence is shaped on the basis of shared characteristics and makes it easier for the people to air their developmental issues, thereby developing a strong sense of community.
On the other hand, when people are organised on the basis of language, it tends to develop factions within the society. Regionalism and sub-nationalism come to the forefront. Though they people develop love and affection for the people of their own language, they might get averse to the people who speak other languages. It has a negative impact on federalism and national identity. Page No Question A. Answer: The correct answer is option a. Question A. Which one of the following sequences in the ascending order of their geographical size is correct?
Bihar - Chhattisgarh - Jharkhand - Orissa B. Which one of the following towns is situated easternmost? Kohima B. Jorhat C. Itanagar D. Dibrugarh -- View Answer 4. Which of the following town is located easternmost? Bokaro B. Jamshedpur C. Patna D. Ranchi -- View Answer 5.
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