Question: Psychoactive drugs can impair the judgment of time. Stimulants can lead both humans and rats to overestimate time intervals, while depressants can have the opposite effect. The level of activity in the brain of neurotransmitters such as dopamine and norepinephrine may be the reason for this. Such chemicals will either excite or inhibit the firing of neurons in the brain, with a greater firing rate allowing the brain to register the occurrence of more events within a given interval (speed up time) and a decreased firing rate reducing the brain's capacity to distinguish events occurring within a given interval (slow down time).
Is there an answer to this question: The level of what is the reason stimulants and depressants change human perceptions of neurons?

Answer: unanswerable

Question: The 2011 census showed that 36.7 per cent of Greater London's population were born outside the UK. The table to the right shows the 30 most common countries of birth of London residents in 2011, the date of the last published UK Census. A portion of the German-born population are likely to be British nationals born to parents serving in the British Armed Forces in Germany. Estimates produced by the Office for National Statistics indicate that the five largest foreign-born groups living in London in the period July 2009 to June 2010 were those born in India, Poland, the Republic of Ireland, Bangladesh and Nigeria.
Is there an answer to this question: What agency is responsible for compiling London's population data?

Answer: the Office for National Statistics

Question: The Recommended Exposure Index (REI) technique, new in the 2006 version of the standard, allows the manufacturer to specify a camera model's EI choices arbitrarily. The choices are based solely on the manufacturer's opinion of what EI values produce well-exposed sRGB images at the various sensor sensitivity settings. This is the only technique available under the standard for output formats that are not in the sRGB color space. This is also the only technique available under the standard when multi-zone metering (also called pattern metering) is used.
Is there an answer to this question: What is another name for multi-zone metering?

Answer: pattern metering

Question: Several websites assert that Israel is the 51st state due to the annual funding and defense support it receives from the United States. An example of this concept can be found in 2003 when Martine Rothblatt published a book called Two Stars for Peace that argued for the addition of Israel and the Palestinian territories surrounding it as the 51st state in the Union. The American State of Canaan, is a book published by Prof. Alfred de Grazia, political science and sociologist, in March 2009, proposing the creation of the 51st and 52nd states from Israel and the Palestinian territories.
Is there an answer to this question: Why is Israel referred to as Canaan?

Answer:
unanswerable