Answer: D. changes direction
Explanation: A lens works by refraction: it bends light rays as they pass through it so they change direction.
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The answer is 2 . 6-4= 2 3-2=1. 2/1=2
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Answer:
in regions where the temperature often drops below freezing at night
Explanation:
Answer:
At the end of the eighteenth century, village communities began to disband under the pressure of new forces