geography

Arctic Region and Arctic Council

The Arctic is a polar region located at the northernmost part of Earth.

8 Jul, 2020

BRAHMAPUTRA AND ITS TRIBUTARIES

About Brahmaputra River: The Brahmaputra called Yarlung

3 Jul, 2020
Blog Archive
  • 2022 (336)
  • 2021 (480)
  • 2020 (115)
  • Categories

    Current Affairs – 14th February 2022

    1.    PALK BAY

    • News: In the third such incident in the Palk Bay area in the past two months, the Sri Lankan Navy on Saturday arrested 12 fishermen from Rameswaram in Tamil Nadu, and seized two boats on the charge of poaching.
    • About Palk Bay:
      • Palk Bay is a semi-enclosed shallow water body between the southeast coast of India and Sri Lanka, with a water depth maximum of 13 m.
      • Palk Bay is located between 8° 50′ and 10° North latitudes and 78° 50′ and 80° 30′ East longitudes.
      • The width of Palk Bay ranges from 57 to 107 km and the length is around 150 km.
      • Palk Bay is considered to be one amongst the major sinks for sediments along with Gulf of Mannar.
      • Sediments discharged by rivers and transported by the surf currents as littoral drift settle in this sink.
    • About Gulf of Mannar:
      • The Gulf of Mannar is a large shallow bay forming part of the Laccadive Sea in the Indian Ocean with an average depth of 5.8 m (19 ft).
      • It lies between the southeastern tip of India and the west coast of Sri Lanka, in the Coromandel Coast region.
      • The chain of low islands and reefs known as Adam’s Bridge (aka Rama Sethu), which includes Mannar Island, separates the Gulf of Mannar from Palk Bay, which lies to the north between India and Sri Lanka.
      • The estuaries of Thamirabarani River and Vaippar River of South India and the Malvathu Oya (Malvathu River) of Sri Lanka drain into the Gulf.
      • The dugong (sea cow) is found here.
    • About Adam’s Bridge:
      • Adam’s Bridge, also known as Rama’s Bridge or Rama Setu, is a chain of natural limestone shoals, between Pamban Island, also known as Rameswaram Island, off the south-eastern coast of Tamil Nadu, India, and Mannar Island, off the north-western coast of Sri Lanka.
      • Geological evidence suggests that this bridge is a former land connection between India and Sri Lanka.
      • The feature is 48 km (30 mi) long and separates the Gulf of Mannar (southwest) from the Palk Strait (northeast).
      • Some of the regions are dry, and the sea in the area rarely exceeds 1 metre (3 ft) in depth, thus hindering navigation.
      • It was reportedly passable on foot until the 15th century when storms deepened the channel. Rameshwaram temple records say that Adam’s Bridge was entirely above sea level until it broke in a cyclone in 1480.
    • About Dugong:
      • The dugong is a marine mammal; its closest modern relative, Steller’s sea cow (Hydrodamalis gigas), was hunted to extinction in the 18th century.
      • The dugong is the only sirenian in its range, which spans the waters of some 40 countries and territories throughout the Indo-West Pacific.
      • The dugong is largely dependent on seagrass communities for subsistence and is thus restricted to the coastal habitats which support seagrass meadows, with the largest dugong concentrations typically occurring in wide, shallow, protected areas such as bays, mangrove channels, the waters of large inshore islands and inter-reefal waters.
      • The IUCN lists the dugong as a species vulnerable to extinction, while the Convention on International Trade in Endangered Species limits or bans the trade of derived products.

    2.    DOXXING ON SOCIAL MEDIA

    • News: Meta’s oversight board has suggested Facebook and Instagram to make strict doxxing rules. It urged Meta to consider doxxing as an offence which should prompt temporary account suspension.
    • Details:
      • Doxxing is the act of publishing others’ personal information on the internet with malicious intent which can make them victims of harassment and cyber attacks.
      • The board has asked to allow sharing of private residential addresses only when posted by the user to promote charitable causes or find missing people, animals, objects, or for contacting business service providers.
      • The firm highlighted how doxxing is used to shame or punish people who would rather stay anonymous, because of their controversial beliefs or other types of non-mainstream activity. It reckons that most of us are careless with the information we share on the Internet, that cybercriminals can use to find out our real identity and harass us.
      • The security firm has highlighted a few instances of doxxing.
      • Doxxing can result in emotional distress, loss of employment and even physical harm or death.
      • It recommended Meta to remove the exception that allows the sharing of private residential information when it is considered “publicly available.”
      • It has asked the Facebook-parent to allow sharing of private residential addresses only when posted by the user to promote charitable causes, find missing people, animals, objects, or for contacting business service providers. By default, users should be considered not to have given such consent.
      • Meta must ensure that users have a quick and effective mechanism to request the removal of private information posted by others, the board said.