Ozone layer

Ganga river:- The Ganges, or Ganga, is a trans-boundary river of Asia which flows through India and Bangladesh. The 2,601 km river rises in the western Himalayas in the Indian state of Uttarakhand, and flows south and east through the Gangetic Plain of India and Bangladesh, eventually emptying into the Bay of Bengal.   The Ganges is one India's holiest and also most-polluted rivers. Millions live on its banks across several states. It's widely considered as a lifeline for many Indians. But it has become severely polluted in the past few decades - industrial effluent is regularly emptied into the waters, as is waste from the millions of people who live alongside its banks. The government has spent millions of dollars to clean up the river, but with very little success. But the lockdown meant to curb the spread of the coronavirus appears to have helped. Before lockdown After lockdown National Mission for Clean Ganga(NMCG)  was registered...

Ozone layer:-  The  ozone layer  or  ozone shield  is a region of earth 's stratosphere   that absorbs most of the sun' s ultraviolet   radiation. It contains high concentration of ozone  (O 3 ) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere. The ozone layer contains less than 10 parts per million of ozone, while the average ozone concentration in Earth's atmosphere as a whole is about 0.3 parts per million. The ozone layer is mainly found in the lower portion of the stratosphere, from approximately 15 to 35 kilometers (9.3 to 21.7 mi) above Earth, although its thickness varies seasonally and geographically. The Earth’s Ozone Layer Shows Improvement Amid Lockdown As humans stay indoors, amid COVID-19 lockdown the earth’s ozone layer shows remarkable improvement, and the 1987 Montreal protocol deserves credit for it.  With more  and more...