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Suppose the world demand for iron is about 420,000,000 tons per year. The known global reserves are 100,000,000,000 tons. The demand for iron is increasing at a rate of 1.8%. What is the exponential reserve for iron?
Smiling
A facial expression denoting pleasure, favor, or amusement, but can also be a voluntary or involuntary response to social interactions.
Mood
A temporary state of mind or feeling that can vary from happiness to sadness, which affects a person's emotional state but is less intense than emotions.
Cognitive Arousal Theory
A theory suggesting that arousal in the cognitive system can affect emotions and motivation.
Emotion
A complex psychological state involving an experiential, behavioral, and physiological response to a situation or stimulus.
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