Final answer:
The correct radius of the Earth is 6.371 × 10⁶ meters (option 1), as the Earth's radius is approximately 6,371 km and must be converted appropriately to meters.
Step-by-step explanation:
The radius of the Earth is a measurement from the center of the Earth to the surface. According to the data provided, the Earth has a radius of approximately 6,371 kilometers (km), which, when converted into meters (m), is 6.371 × 10⁶ m. Therefore, the correct option out of the ones listed is 6.37×10⁶ m (option 1). For reference, 6.37×10⁷ m would be 10 times larger than the actual size, and 6.37×10⁸ m and 6.37×10⁹ m are vastly larger than the true value. When working with scientific measurements and units, it's crucial to understand unit manipulation. A misplacement of a decimal or misunderstanding of the conversion between units such as kilometers to meters can lead to significant errors in calculation and understanding of the concept.