Answer: (a)

Explanation:

The islands of the Arabian Sea include Lakshadweep and Minicoy. These islands are scattered between 80°N to 12°N and 71°E to 74°E. It is located 280 kilometers to 480 kilometers away from the Kerala coast. The entire island group is made up of coral deposits. Hence, statement 1 is correct.

There are 36 islands and 11 of these are inhabited by humans. Minicoy is the largest island with an area of 453 square kilometers. The entire island group is divided into two parts by the 11° Channel, Amini Island in the north and Cananore Island in the south. This group of islands has storm-formed mounds on which unconsolidated pebbles, shingles, rocks and boulders are found on the eastern seaboard. Hence, both statements 2 and 3 are incorrect.

Answer: (a)

Explanation:

Mizoram, also known as 'Molasse Basin', is made up of soft and unconsolidated rocks. Most of the rivers flowing in Nagaland are tributaries of the Brahmaputra River. The two rivers of Mizoram and Manipur are tributaries of the Barak River, which is a tributary of the Meghna River. Hence, option (a) is the correct answer.

Answer: C

Explanation:

The Deccan Plateau has the Western Ghats in the west, the Eastern Ghats in the east and the Satpura, Maikal and Mahadev Hills in the north. - The Western Ghats have been given many local names, such as Sahyadri in Maharashtra, Nilgiri in Karnataka and Tamil Nadu and Anamalai and Cardamom Hills in Kerala. The Western Ghats are higher and more continuous than the Eastern Ghats. Their average height is about 1500 meters, which increases from north to south. The highest peak of the Peninsular Plateau is Anaimudi (2695 m), located in the Anamalai Hills of the Western Ghats. The second highest peak is Dodabetta and is in the Nilgiri Hills. Hence, statement 1 is incorrect

Most of the peninsular rivers originate from the Western Ghats. The Eastern Ghats are not continuous and are eroded by the Mahanadi, Godavari, Krishna and Kaveri rivers. Some of the main ranges here are Javadi Hills, Palakonda Range, Nallamala Hills and Mahendragiri Hills. The Eastern and Western Ghats meet each other in the Nilgiri Hills. Hence, statement 2 is incorrect.

Answer: (d)

Explanation:

There is a difference of about two hours in the time between the easternmost and westernmost parts of our country. The reason for this is that the east-west extension of our country is more, which when calculated is approximately 30º (from 68º7' East to 97º25' East). Hence, option (d) is correct.

Answer: (a)

Explanation:

The coasts of Gujarat are a combination of the coasts of western and southern India. The length of Gujarat's coastline is 1600 kilometers. It covers about 24 percent of the Indian coastline.