Current Affairs Question - 29 January 2020

Explanation :

• The Assam Legislative Council was the unicameral legislature of Assam in India from 1913 to 1935 and then the upper house of the bicameral legislature from 1935 to 1947, when it was disbanded by the India (Provincial Legislatures) Order, 1947.
• After Assam, West Bengal had abolished its Legislative Council in 1969.
• The Punjab Legislative Council (Abolition) Act, 1969 was adopted in 1969. Through this legislation the Punjab Legislative Council was abolished. The law came into effect on 7 January 1970.

Explanation :

• Mineral Accretion Technology, also known as Biorock Technology, is a method that applies safe, low voltage electrical currents through seawater, causing dissolved minerals to crystallize on structures, growing into a white limestone similar to that which naturally makes up coral reefs and tropical white sand beaches.
• Mineral accretion devices utilize a well-known process called electrolysis, which is also used for other applications such as plating metals, removing rust, creating hydrogen batteries, and more.
• The advantages corals gain from mineral accretion are cancelled if they no longer receive current, at which point weeds will overgrow the corals. If the current is maintained, coral reefs can often be restored even in areas where water quality would prevent their recovery by any other method.

Advantage

• This technique has been shown to greatly increase the settlement, healing, growth and survival of corals and to enable resistance in corals, intertidal salt marsh grasses and coral forming marine organisms to stresses such as extreme high temperatures, sedimentation, and eutrophication.