Tag: history

The Bhavnagar state was one of the first to merge into the United State of Saurashtra, which occurred on February 15, 1948.

Goa attained statehood on May 30, 1987, at which point Daman and Diu were separated to become a separate Union Territory.

Maharaja Hari Singh signed the Instrument of Accession on October 26, 1947, following the tribal invasion of the state.

Following the military action in 1961, the territories of Goa, Daman, and Diu were formally integrated into the Indian Union in 1962.

The Taj Mahal has become a matter of concern because pollutants in air are discolouring its white marble. It is the most beautiful place in India and it will be a tragedy if something bad happens to it. 

Experts have warned that pollutants in the air are discolouring its white marble. So, it is not only living organisms that get affected by polluted air but non-living things like buildings, monuments and statues also get affected.

The Supreme Court ordered industries to switch to cleaner fuels like CNG (Compressed Natural Gas) and LPG (Liquefied Petroleum Gas). Moreover, the automobiles should switch over to unleaded petrol in the Taj zone.

Experts have warned about Taj Mahal that pollutants in air are discolouring its white marble.

Granite is the least susceptible to acid rain because its it is composed of feldspar and quartz, both of which resist attacks of acid.

Sulphur dioxide fumes mix with air moisture and come down as acid rain in the form of sulphuric acid. This acid rain can damage the marble tombs which is calcium carbonate and its reaction with acid rain forms calcium sulfate which gives a yellowish color of acid to the marble. This gradually destroys the marble structure over a period of time.
$CaCO _3 + H _2SO _4 \rightarrow CaSO _4 + H _2O + SO _2\uparrow$