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Everyday Science Mcqs

Red + Green + Blue = ________?

Red + Green + Blue = ________?A. Maroon
B. White
C. Black
D. None of the above

Only when mixing frequencies of light, not paint:
“White light can be produced by combining only three distinct frequencies of light, provided that they are widely separated on the visible light spectrum. Any three colors (or frequencies) of light that produce white light when combined with the correct intensity are called primary colors of light. There are a variety of sets of primary colors. The most common set of primary colors is red (R), green (G) and blue (B). When red, green and blue light are mixed or added together with the proper intensity, white (W) light is obtained.
This is often represented by the equation: R + G + B = W”

 

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Everyday Science Mcqs

People with what blood type can give blood to anyone and are thus called universal donors?

People with what blood type can give blood to anyone and are thus called universal donors?

A. O-
B. O
C. AB+
D. AB-

People with type O- blood are called universal donors because their donated red blood cells have no A, B or Rh antigens and can therefore be safely given to people of any blood group.

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Everyday Science Mcqs

The average human body contains how many pints of blood?

The average human body contains how many ts of blood?

A. 3 to 5 ts
B. 5 to 7 ts
C. 7 to 8 ts
D. 9 to 12 ts

Human blood volume. An average adult has between 9 and 12 ts of blood in their body. The volume of blood in a person’s body will vary according to their size and other factors, but the average quantities of blood are as follows: An average-sized woman has about 9 ts of blood.An average-sized man has about 12 ts of blood. An infant has 75 to 80 milliliters of blood per kilogram (ml/kg) of body weight. A child has 70 to 75 ml of blood per kg of body weight.

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Everyday Science Mcqs