Social Studies, 08.01.2021 17:40 linnybear300
Which of the following is an example of an observation that must be made indirectly, or through a scientific instrument?
A. a movement of a radio signal through the air
B. the ground moving during an earthquake
c. the warmth of infrared waves from the Sun
d. the wind moving through the trees
Answers: 1
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Which of the following is an example of an observation that must be made indirectly, or through a sc...
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