1. The United Nation Environment Programme (UNEP) has recently issued a warning about the nitrous oxide, which is now biggest threat to the ozone layer. Which among the following is the biggest human activity, that causes maximum nitrous oxide emission?
[A]Agriculture
[B]Industries
[C]Mining
[D]Automobiles
Ans: Agriculture
Nitrous oxide is one of several greenhouse agents which are dubbed “Cinderella gases, because their contribution passes unnoticed. Nitrous oxide exists naturally in the atmosphere but agriculture is by far the biggest human source, producing two-thirds of emissions. It is also used in dentistry and surgery as anaesthetic and a painkiller. Now, researchers say that is has emerged as the single biggest threat to the ozone layer since chlorofluorocarbons and other damaging gases were restricted by the Montreal Protocol signed in 1987
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2. Frederick Sanger, who passed away, recently was a ___?
[A]Economist
[B]Biochemist
[C]Author
[D]Philanthropist
Ans:Biochemist
Frederick Sanger was a British biochemist, who twice won the Nobel Prize in chemistry and was a pioneer of genome sequencing. He was died at the age of 95. Sanger first won the Nobel Prize in 1958 at the age of 40 for his work on the structure of proteins. Again in 1980 he was jointly awarded Nobel Prize with Stanford University’s Paul Berg and Walter Gilbert, for their work determining base sequences in nucleic acids.
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3. On November 21, 2013 India entered the golden jubilee of the launch of its rocket. India’s first rocket was launched from which among the following places?
[A]Thumba
[B]Balsore
[C]Sriharikota
[D]Wheeler Island
Ans: Thumba
India entered the golden jubilee of the launch of its first rocket from the coastal hamlet of Thumba. The American-built rocket was fired on November 1, 1963. The launch site in due course came to be known as Thumba Equatorial Rocket Launch Station and later became Vikram Sarabhai Space Centre, a major centre of ISRO named after pioneer of Indian space Vikram Sarabhai.
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4. The “Aranumala International Airport” is an airport project planned to be built in which state?
[A]Kerala [B]Madhya Pradesh
[C]Gujarat
[D]Odisha
Ans: Kerala
Aranumala International Airport is planned to be built at Aranumala, Kerala, at a cost of Rs 2,000 crores. The airport is proposed to be built on about 700 acres of land. The project faces strong protest from environmentalists and local people as well as the opposition parties in Kerala.
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