6th August 2024

Explanation - The Brahmani River is one of the major rivers in the Deccan Plateau, flowing through states like Odisha and Jharkhand. The Brahmani River is formed by the confluence of the

Sankh and Koel rivers. However, this statement is incorrect as it incorrectly describes the origin of the river. The Brahmani River is formed by the confluence of the rivers Sankh and Koel, which are both significant tributaries. The Hirakud Dam is indeed constructed on the Brahmani River. Hirakud Dam is one of the longest dams in the world, and it is located in Odisha on the river Brahmani.

Explanation - Glioblastoma is indeed classified as a grade IV astrocytoma, which is the most

aggressive form of brain tumour according to the World Health Organisation (WHO) classification. 

Glioblastoma is the most common type of primary brain tumour in adults, characterised by its rapid growth and poor prognosis. Glioblastoma generally does not have a high rate of metastasis to other organs outside the brain. Instead, it primarily remains localised within the brain and spreads within the central nervous system. Its aggressive nature is noted for its local invasiveness and recurrence rather than distant metastasis.

Explanation - Lyme disease is caused by a bacterium called Borrelia burgdorferi and is primarily transmitted to humans through the bite of infected black-legged ticks, also known as deer ticks. These ticks are commonly found in wooded and grassy areas. The infection can lead to a range of symptoms, including fever, headache, fatigue, and muscle and joint aches. One distinctive feature of Lyme disease is the appearance of a circular, red rash with a clear centre, often resembling a bull's-eye. This rash is known as erythema migrans. It's important to note that if left untreated, Lyme disease can lead to more serious complications affecting the joints, heart, and nervous system. Therefore, early detection and treatment are crucial. Preventive measures include wearing long-sleeved clothing and using tick repellent when spending time in tick-prone areas. Checking for ticks after outdoor activities and promptly removing any attached ticks can also help prevent infection.