Answer: (c)

Explanation:

The Kosi is a precipitous river whose source is north of Mount Everest in Tibet, from where its main stream, the Arun, originates. This is called the sorrow of Bihar. It has been notorious for changing its course. Hence, statement 1 is correct.

In Nepal, after crossing the Central Himalayas, it is joined by Son and Kosi from the west and Tamur Kosi from the east. It joins the Arun River to form Saptakosi. This river brings huge amount of sediment from the upper areas of the mountains and deposits it in the plains. Due to this, the path of the river gets blocked and as a result the river changes its course. Hence, statement 2 is correct.

Answer: (c)

Explanation:

The Tropic of Cancer runs from east-west through the middle of India. The southern part of the country, south of the Tropic of Cancer, is tropical. The northern part of the country, which is north of the Tropic of Cancer, is subtropical, which is why India experiences both tropical and subtropical climates. Hence, statement 1 is correct.

The latitudinal extent of India is from about 8º4'N to 37º6'N, the longitudinal extent is from about 68º7'E to 97º25'E, which is about 30° from north to south and from west to east.० Have degree. Hence, statement 2 is correct.

Answer: (d)

Explanation:

There are many mountain ranges in the Kashmir Himalayas, such as the Greater Himalayas, Karakoram, Ladakh, Jaskar and Pir Panjal.  Important ranges like Zojila in the Greater Himalayas, Banihal in Pir Panjal, Potu La in the Zaskar range and Kharduga La in the Ladakh range are located. Important freshwater lakes, such as Dal and Wular and salt water lakes like Pangong Tso and Tso Moriri are also found in this area. Hence, option (d) is the correct answer.

Answer: (d)

Explanation:

The rotation of the Earth has no effect on the amount of rainfall in a particular area. The other three options are all factors that affect the amount of rainfall that occurs in a particular area. Hence, option (d) is the correct answer.

Answer: A

Explanation:

The plain of Northern India is made up of alluvial deposits carried by the Indus, Ganga and Brahmaputra rivers. The east to west length of this plain is approximately 3200 kilometers. Its average width is 150 to 300 kilometers. The maximum depth of alluvial deposits is 1000 to 2000 meters. Hence, statement 1 is correct.

From north to south, these plains can be divided into three parts; Bhabhar, Terai and alluvial plains. The alluvial plain is further divided into two parts – Khadar and Bangar. Hence, statement 2 is incorrect.

Bhabhar is a thin strip of 8 to 10 kilometers wide which extends parallel to the Shivalik Range Southward . As a result, the rivers coming out of the Himalayan mountain ranges deposit huge water loads like big rocks and boulders here and sometimes they get lost in it. To the south of Bhabhar is the Terai region whose width is 10 to 20 kilometers. In the Bhabhar region, extinct rivers emerge on the surface in this region and because they do not have definite channels, this region becomes isolated, which is called Terai. Hence, statement 3 is correct.