Indicates that blind children who have never observed others demonstrate normal facial expressions of emotion. Facial expressions are the movement of the facial muscles that the person performs to express emotions, this is done in an innate way, that is, we are born with the knowledge to perform facial expressions. This explains why blind people express emotions through facial expressions, and because we use the same facial expressions to demonstrate emotions throughout the world.
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Fossil fuel is liquid dinosaur bones that we purify and put into our cars as "gas" which goes into the air as combustion which is carbon dioxide. to much carbon dioxide is bad because that is a green house gas which causes global warming
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