UPSC World & Physical Geography

Notes:

• The Anji Khad Bridge, located in Jammu and Kashmir, is the westernmost of the three, connecting Katra and Reasi.
• The Mahatma Gandhi Setu, situated in Patna, Bihar, is one of the longest river bridges in India. It spans the Ganges River and connects Patna with Hajipur. This iconic bridge plays a significant role in connecting northern Bihar with the state’s capital.
• The Bhupen Hazarika Setu, also known as the Dhola-Sadiya Bridge, is the longest river bridge in India. It spans the mighty Brahmaputra River, connecting Dhola in Assam with Sadiya in Arunachal Pradesh. This bridge significantly reduces travel time between the two states and enhances connectivity in the remote northeastern region.

Notes:

• The series of lakes includes 4 lakes; Lake Victoria, Tanganyika, Malawi and Turkana. Collectively, they contain 31,000 km³ (7,400 cu mi) of water, which is more than either Lake Baikal or the North American Great Lakes. The lakes constitute about 25% of the planet’s unfrozen surface fresh water.
• The correct sequence of occurrence of the lakes from north to south is Lake Turkana, Lake Victoria, Lake Tanganyika, and Lake Malawi.

Notes:

• The correct order of the given locations in the Indian Ocean Region (IOR) from north to south is:
  • Seychelles
  • Assumption
  • Agalega
  • Reunion Island

Notes:

• ASEAN was founded in 1967 to promote political and economic cooperation in Southeast Asia.
• The Member Nations are Indonesia, Malaysia, Philippines, Singapore, Thailand, Brunei, Vietnam, Laos
  Myanmar and Cambodia.

Notes:

• Correct: The Suez Canal correctly connects the Mediterranean Sea to the Red Sea, serving as a crucial maritime shortcut between Europe and Asia.
• Incorrect: The Kiel Canal, however, does not connect the North Sea with the Celtic Sea; instead, it links the North Sea to the Baltic Sea, allowing ships to bypass the longer route around Denmark.
• Correct: The Panama Canal correctly connects the Atlantic Ocean (via the Caribbean Sea) to the Pacific Ocean, significantly reducing maritime travel time.
• Incorrect: Lastly, the Corinth Canal does not connect the Kara Sea to the Laptev Sea; rather, it links the Aegean Sea to the Ionian Sea, providing a shortcut through the Isthmus of Corinth in Greece.

Notes:

The correct order of the countries from north to south is: Belize → Honduras → Nicaragua → Costa Rica.

Notes:

• Mexico is located to the north of Guatemala.
• Ecuador lies to the south of Guatemala, and Peru is situated further south of Ecuador.
• Thus, the correct order from north to south is Mexico (1), Guatemala (3), Ecuador (4), and Peru (2).

Notes:
Statement 1 is incorrect: the Hercules–Corona Borealis Great Wall is the largest known structure in the observable Universe, not the Milky Way Galaxy. Statement 2 is correct: IC 1101 is regarded as the largest known galaxy in the Universe. Hence, only statement 2 is correct.

Notes:
Neutron stars are formed from the remnants of high-mass stars after a supernova explosion (statement 1). They possess an extremely small radius of about 10–20 km (statement 2). Neutron stars are composed mainly of densely packed neutrons, not ionized plasma, so statement 3 is incorrect.

Notes:
Pulsars are rapidly rotating neutron stars (1) that emit beams of electromagnetic radiation from their magnetic poles, creating a lighthouse effect as they spin (3). Their pulses are not caused by jets aligned with their rotation axis, but by these radiation beams. Therefore, statements 1 and 3 are correct, while 2 is incorrect.