Basic General Knowledge
When a given amount of air is cooled

its absolute humidity decreases
its relative humidity remains constant
the amount of moisture it can hold decreases
its absolute humidity increases

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Basic General Knowledge
The exhaled air contains

a mixture which has more carbon dioxide than oxygen
carbon dioxide only
a mixture of carbon dioxide, nitrogen and oxygen in which nitrogen has the highest percentage
a mixture of carbon dioxide and nitrogen

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Basic General Knowledge
The five intertwined rings or circles on the Olympic Flag made of white silk are

from right to left blue, black, green, red and yellow respectively
from left to right yellow, red, green, black and blue respectively
from left to right blue, yellow, black, green and red respectively
from right to left blue, yellow, black, green and red respectively

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