Eastern and Western Coast

1. Which of the following statements with regard to the western coastal p

Which of the following statements with regard to the western coastal plain of India are correct ?

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  • 1. It is a narrow belt.
  • 2. It is an example of submerged coastal plain.
  • 3. It provides natural conditions for development of ports.
  • 4. It has well developed deltas.

Select the correct answer using the code given below :

1, 2 and 3 only
1 and 2 only
1, 2, 3 and 4
3 and 4 only
This question was previously asked in
UPSC NDA-1 – 2015
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Let’s evaluate each statement:
1. It is a narrow belt: The western coastal plain of India is generally narrow, especially compared to the eastern coastal plain. This statement is correct.
2. It is an example of submerged coastal plain: The western coastal plain is believed to be largely a submerged coastal plain, which is why it is relatively narrow and has less developed deltas. This statement is correct.
3. It provides natural conditions for development of ports: Due to its submerged nature, the coast is often indented and has natural harbours, making it suitable for port development (e.g., Mumbai, Kochi, Kandla, etc.). This statement is correct.
4. It has well developed deltas: The rivers flowing westwards into the Arabian Sea are generally short and swift and do not form significant deltas; instead, they often form estuaries. Well-developed deltas (like the Ganga, Mahanadi, Godavari, Krishna, Cauvery) are characteristic of the eastern coastal plain where rivers are longer and gentler. This statement is incorrect.
Based on the evaluation, statements 1, 2, and 3 are correct.
The Western Coastal Plain of India is narrow, largely submerged, has numerous natural harbours suitable for ports, and lacks well-developed deltas, unlike the Eastern Coastal Plain.
The western coastal plain extends from the Rann of Kachchh in the north to Kanyakumari in the south. It is divided into different sections: the Konkan coast (Maharashtra and Goa), the Kanara coast (Karnataka), and the Malabar coast (Kerala). The absence of large deltas is due to the steeper gradient and shorter courses of the west-flowing rivers, which mostly originate in the Western Ghats.

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2. Which of the following statements about the coasts of India is/are cor

Which of the following statements about the coasts of India is/are correct?
1. The West Coast of India is a high rocky, retreating coast.
2. The West Coast of India is dominated by erosional landforms.
3. The East Coast of India, however, is a low sedimentary coast exhibiting depositional forms.
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1 and 2 only
2 and 3 only
1 only
1, 2 and 3
This question was previously asked in
UPSC CDS-2 – 2022
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The correct answer is D as all three statements correctly describe the general characteristics of the West and East Coasts of India.
– Statement 1: The West Coast of India is largely a rocky, indented coast formed partly by faulting and submergence. While not uniformly retreating everywhere, its rocky nature contrasts sharply with the depositional East Coast.
– Statement 2: Due to its rocky nature and the impact of the Arabian Sea waves, the West Coast exhibits significant erosional landforms like cliffs, coves, headlands, and sea caves, especially in the southern parts.
– Statement 3: The East Coast of India is a broad coastal plain, which is a low sedimentary coast. It is primarily built up by the depositional activities of major rivers like the Mahanadi, Godavari, Krishna, and Cauvery, resulting in extensive deltas, lagoons, and wide beaches (depositional forms).
The West Coast is considered a coast of submergence, while the East Coast is largely a coast of emergence, shaped by deposition. The contrast in their geological structure, slope, and the rivers draining into them accounts for the differences in their landforms.

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3. Which one of the following is the correct sequence of occurrences of r

Which one of the following is the correct sequence of occurrences of rivers from Chennai to Kolkata when travelled by road (shortest distance)?

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Krishna, Kaveri, Godavari, Mahanadi, Subarnarekha
Krishna, Periyar, Godavari, Mahanadi, Subarnarekha
Penneru, Krishna, Godavari, Mahanadi, Subarnarekha
Penneru, Mahanadi, Subarnarekha, Godavari, Krishna
This question was previously asked in
UPSC CDS-1 – 2017
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The correct sequence of occurrences of rivers from Chennai to Kolkata when travelled by road along the east coast is Penneru, Krishna, Godavari, Mahanadi, Subarnarekha.
Travelling northwards from Chennai (Tamil Nadu) along the east coast through Andhra Pradesh, Odisha, and into West Bengal, the major rivers crossed in sequence are the Penneru (or Palar near Chennai), then the Krishna, followed by the Godavari, then the Mahanadi in Odisha, and finally the Subarnarekha river which forms the border between Odisha and West Bengal, before reaching Kolkata.
The Kaveri river is south of Chennai. The Periyar river flows westwards into the Arabian Sea from Kerala, not relevant for a Chennai to Kolkata eastward journey. This sequence reflects the major river systems encountered when moving north along the eastern coastal plains of India.

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