The correct answer is: <span>B) An Astronomical Unit
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Answer:
Events which occur in chemical reactions like photosynthesis are extremely fast.
Explanation:
To see what happens in reactions such as photosynthesis, scientists need advanced cameras that can capture ultra-fast motions occurring within extremely short scales of time.
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Long-term health effects from air pollution include heart disease, lung cancer, and respiratory diseases
Short-term air pollution can aggravate the medical conditions of individuals with asthma and emphysema.
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