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Option: D
Explanation :Mr. Muhammad Azam Khan Swati is serving as Federal Minister for Parliamentary Affairs since 18 April 2019 in cabinet of Prime Minister Imran Khan. He was born in Khyber Pakhtunkhwa Province. He joined the Jamiat Ulema-e-Islam-Fazl party. Azam Khan Swati resigned from the Senate and the Jamiat Ulema-i-Islam (JUI-F), on Saturday 17 December 2011, joined the Pakistan Tehreek-e-Insaf (PTI). Swati had pursued the Hajj corruption case in the Supreme Court relentlessly, which ultimately forced the government to sack former religious affairs minister Hamid Saeed Kazmi.
In 2018 Senate election he was again elected as a senator on Pakistan Tehreek-e-Insaf ticket. Previously he was Federal Minister for Science and Technology (5 October 2018 – 6 December 2018).

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Option: C
Explanation :Nitrous oxide (N2O), also called dinitrogen monoxide, laughing gas, or nitrous, one of several oxides of nitrogen, a colourless gas with pleasant, sweetish odour and taste, which when inhaled produces insensibility to pain preceded by mild hysteria, sometimes laughter.Nitrous oxide was discovered by the English chemist Joseph Priestley in 1772; another English chemist, Humphry Davy, later named it and showed its physiological effect.

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Option: C
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Option: A
Explanation :Metallic bonds can occur between different elements. A mixture of two or more metals is called an alloy. Depending on the size of the atoms being mixed, there are two different kinds of alloys that can form: 1. Substitutional alloy 2. Interstitial alloy

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Option: C
Explanation :Pea sized portions of potassium chlorate and red phosphorus are reacted together by striking with a hammer. Smoke, a loud bang and a flash are observed.

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Option: D
Explanation :Hydrogen and helium, the lightest two gases, weigh so little that helium balloons and hydrogen dirigibles are able to float in the atmosphere. Hydrogen is a diatomic gas, and helium is a monatomic gas. Both hydrogen and helium are lighter than air.

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Option: B
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Option: A
Explanation :The 2019 Asian Athletics Championships was the 23rd edition of the Asian Athletics Championships. It was held from 21 to 24 April 2019 at the Khalifa International Stadium in Doha, Qatar. During the closing ceremony of the 22nd Asian Athletics Championships in Bhubaneswar India, President of Asian Athletics Association (AAA) Dahlan Al Hamad officially handed over the AAA Flag to Qatar Olympic Committee Secretary-General and Qatar Athletics Federation President Thani Abdulrahman Al Kuwari.

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Option: D
Explanation :The Horsfield’s bronze cuckoo (Chrysococcyx basalis) is a small cuckoo in the family Cuculidae. Its size averages 22g and a small greenish bird with a barred chest and tail, and a dark stripe through the eye that droops down across the cheek. Young birds can be almost unbarred and may appear similar to the grayer Black-eared Cuckoo. Often perches prominently on top of a shrub or tree, and calls repeatedly with a loud piercing descending whistle. Occurs in Indonesia and across much of Australia (including arid inland areas).

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Option: D
Explanation :All B vitamins help the body to convert food (carbohydrates) into fuel (glucose), which is used to produce energy. These B vitamins, often referred to as B-complex vitamins. B-complex vitamins are needed for a healthy liver, and healthy skin, hair, and eyes. Biotin is a coenzyme involved in the metabolism.Food that contain richest sources of biotin are Liver and other Meats, Egg yolk, Yeast, Nuts and seeds (Almonds, Peanuts,Walnuts and pecans), Salmon (Salmon is a fatty fish), Dairy (Milk, Cheese, Yogurt),Avocados , Sweet Potato, Cauliflower.

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