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Biology, 04.02.2020 21:43 Svetakotok
The canadian shield, a vast expanse of ancient rock, is centered around which area?
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Biology, 22.06.2019 15:00
If you relate the doppler effect on sound to the color of light waves, a police car would be the color as it approaches and the color as it recedes away from the observer.
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The canadian shield, a vast expanse of ancient rock, is centered around which area?...
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