The question asks to identify the glacier that serves as the source of the River Ganga, specifically its headstream, the Bhagirathi. This is a factual question related to Indian geography.
Correct Option: D) Gangotri Glacier
The Gangotri Glacier is the primary source of the Bhagirathi River, which is considered the mythological and hydrological source of the Ganga. The Bhagirathi meets the Alaknanda River at Devprayag to form the main stem of the Ganga River.
The question asks about the confluence point of the Bhagirathi and Alaknanda rivers, which together form the Ganga River. This is a fundamental geographical fact related to the origin of one of India's most significant rivers, often tested in competitive exams.
C) Devprayag — At Devprayag, the Bhagirathi River (coming from the north) and the Alaknanda River (coming from the northwest) merge to form the Ganga River. This is the last of the Panch Prayags when moving downstream along the Alaknanda.
The question asks to identify the largest tributary of the River Ganga. To answer this, we need to compare the major tributaries of the Ganga based on their length or discharge volume, as 'largest' can refer to either. In geographical context, 'largest' often implies the longest or the one with the largest drainage basin/discharge.
Correct Option: D) Yamuna is the longest tributary of the River Ganga, measuring approximately 1,376 km. It joins the Ganga at Prayagraj (Allahabad).
The question asks for the origin glacier of the Yamuna River. This is a direct factual question related to Indian geography. We need to identify the correct glacier among the given options.
C) Yamunotri Glacier (Bandarpoonch) — The Yamuna River originates from the Yamunotri Glacier, which is situated on the southwestern slopes of the Bandarpoonch peak in the Uttarkashi district of Uttarakhand, India.
The question asks about the confluence point of the Yamuna and Ganga rivers. This is a fundamental geographical fact often tested in competitive exams related to Indian geography.
D) Prayagraj (Allahabad) — The Yamuna River joins the Ganga River at Prayagraj (formerly known as Allahabad) in Uttar Pradesh. This confluence is a highly revered pilgrimage site known as the Triveni Sangam.
The question asks to identify the river that is NOT a tributary of the Ganga. To answer this, one needs to know the major tributaries of the Ganga river system and identify the river that belongs to a different river system.
The Ghaghara, Gandak, and Kosi are all well-known tributaries of the Ganga, originating in the Himalayas and joining the Ganga from the north.
The Indravati River, however, is a major tributary of the Godavari River, flowing through the states of Odisha and Chhattisgarh, and is part of the Peninsular Indian river system, not the Ganga river system.
D) Indravati — The Indravati River is a tributary of the Godavari River, not the Ganga. It is a significant river in Central India, flowing through Chhattisgarh and Odisha before joining the Godavari.