How do scientists know that the universe is expanding?
1. The Doppler effect shows stars with...
How do scientists know that the universe is expanding?
1. The Doppler effect shows stars with yellow shifted light
2. The Doppler effect shows stars with green shifted light
3.The Doppler effect shows stars with blue shifted light
4. The Doppler effect shows stars with red shifted light
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What landform caused by water erosion and deposition is shown in the image?
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