The earth revolves around the sun at an average speed of ___________________. 1 point 21.8 km/sec 25.9 km/sec 29.8 km/sec 39.8 km/sec.
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the process by which green plants turn carbon dioxide and water into food using energy from sunlight
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30 kilometers per second
As schoolchildren, we learn that the earth is moving about our sun in a very nearly circular orbit. It covers this route at a speed of nearly 30 kilometers per second, or 67,000 miles per hour.
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