Basic General Knowledge
Theory of Idealism was expounded by George Hegal, Bishop George and Berkeley According to this

mathli is an illusion and that the only reality that which exists mentally
good was pleasure and that evil was pain
base of knowledge is sense-experience, that is, observations governed by scientific principles
all knowledge is derived from sensory experience, by observing and experimenting

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Basic General Knowledge
The exhaled air contains

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

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