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Evaluating Explanations
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Which statement is scientifically reasonable?
In the early 2000s, scientists and farmers began to notice
a sharp decline in the population of honeybees around
the world. Many explanations were proposed for the
cause of the decline. Three possible explanations were
pesticides on crops, parasites in beehives, and cell phone
tower signals.
One study showed that pesticides were affecting
bee populations near one farm. Therefore,
pesticides on crops is the only reasonable
explanation.
• A post online claims, "Many people thought that cell
phone signals were confusing the bees' sense of
navigation." Therefore, cell phone signals is the
best explanation
Multiple scientific experiments need to be
conducted to determine whether these possible
causes are affecting bee populations.
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