Which of the following is not a Fat-soluble vitamin?
Which of the following is not a Fat-soluble vitamin?
A. Vitamin B5
B. Vitamin B6
C. Vitamin B3
D. Vitamin B2
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What is the name of the biggest part of human brain?
What is the name of the biggest part of human brain?A. Cerebellum
B. Cerebrum
C. Brainstem
D. PituitaryWhich of the following vitamin is known as Pyridoxine?
Which of the following vitamin is known as Pyridoxine?A. Vitamin B-1
B. Vitamin B-2
C. Vitamin B-6
D. Vitamin B-12Who invented the first battery?
Who invented the first battery?A. Alessandro volta
B. Tim Berner
C. Rob Stothard
D. Georges LeclancheThe instrument which measures very high temperature is____________?
The instrument which measures very high temperature is____________?
A. Manometer
B. Thermostat
C. Chronometer
D. Pyrometer
E. None of theseAn Average Hummingbird’s heart rate per minute is __________.
An Average Hummingbird’s heart rate per minute is __________.A. 500 times
B. 1000 times
C. more than 1000 times
D. more than 1200 timesAt what temperature are Celsius and Fahrenheit equal?
At what temperature are Celsius and Fahrenheit equal?A. -40 degree
B. 40 degree
C. -10 degree
D. 10 degreeThe formulas for converting between degree Celsius and degree Fahrenheit are:
°F = (°C * 9/5) + 32
°C = (°F – 32) * 5/9
To find the temperature when both are equal, we use an old algebra trick and just set ºF = ºC and solve one of the equations.
°C = (°C * 9/5) + 32
°C – (°C * 9/5) = 32
-4/5 * °C = 32
°C = -32 * 5/4
°C = -40
°F = (°F * 9/5) + 32
°F – (°F * 9/5) = 32
-4/5 * °F = 32
°F = -32 * 5/4
°F = -40
So the temperature when both the Celsius and Fahrenheit scales are the same is -40 degrees.