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By volume, dry air contains 78.09 % nitrogen, 20.95 % oxygen, 0.93 % argon, 0.04 % carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1 % at sea level, and 0.4 % over the entire atmosphere. Air content and atmospheric pressure vary at different layers, and air suitable for use in photosynthesis by terrestrial plants and breathing of terrestrial animals is found only in Earth's troposphere and in artificial atmospheres.

Answer this question based on the passage: what is the percentage of o2 in air?

Stream of random thoughts: To answer the above question, the relevant sentence is: By volume, dry air contains 78.09 % nitrogen, 20.95 % oxygen, 0.93 % argon, 0.04 % carbon dioxide, and small amounts of other gases.... The answer is 20.95 %.
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Evening is the period of time at the end of the day, usually from about 6pm to bedtime. It is a daily astronomic event of variable time period between daytime and night, and the period in which the daylight is decreasing, after the afternoon and before night. There is no exact time for when evening begins and ends (equally true with night). Though the term is subjective, evening is typically understood to begin shortly before sunset and during twilight (sunset and twilight vary throughout the year), lasting until night -- typically astronomical sunset. There can be no precise definition in terms of clock time, but it is socially considered to start around 6 pm. and to last until nighttime or bedtime.

Answer this question: what time does afternoon end and evening start?

Stream of random thoughts: The important part for answering this question is: Evening is the period of time at the end of the day, usually from about 6pm to bedtime.... The answer is about 6pm.
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A card security code (CSC; also called card verification data ( CVD), card verification number, card verification value (CVV), card verification value code, card verification code (CVC), verification code (V-code or V code), or signature panel code (SPC) ) is a security feature for "card not present" payment card transactions instituted to reduce the incidence of credit card fraud.

What is cvc number on a credit card?

Stream of random thoughts: To answer this question, we should know that: A card security code (CSC; also called card verification data ( CVD), card verification number, card verification value (CVV), card verification value code, card verification code (CVC), verification code (V-code or V code), or signature panel code (SPC) ) is a security feature for "card not present" payment card transactions instituted to reduce the incidence of credit card fraud.... The answer is a security feature for `` card not present '' payment card transactions instituted to reduce the incidence of credit card fraud.
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Paul Davis Ryan Jr. (/ ˈraɪən /; born January 29, 1970) is an American politician who is the 54th and current Speaker of the United States House of Representatives. He was the Republican Party nominee for Vice President of the United States, running alongside former Governor Mitt Romney of Massachusetts, in the 2012 election.

Based on this passage, who was recently selected to serve as the speaker of the house of representatives?


Stream of random thoughts: To answer the question, consider the following: Paul Davis Ryan Jr. (/ ˈraɪən /; born January 29, 1970) is an American politician who is the 54th and current Speaker of the United States House of Representatives.... The answer is Paul Davis Ryan Jr..
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