Difficulty: Easy

Average Score: 75%

Students and their teacher investigated whether birds prefer certain types of seeds over others. The students filled three feeders with three different types of seeds and hung them from tree branches outside their classroom window.

They then counted the number of times birds visited each feeder during a 20-minute period. The data were collected over three days: Tuesday, Wednesday, and Thursday.

The results are shown in the table below.

Compared with Earth's diameter, the Sun's diameter is best described as approximately

Rationale

Compared with Earth's diameter, the Sun's diameter is best described as approximately 109 × greater.

The Sun's diameter is about 1.4 million kilometers, while Earth's diameter is approximately 12,742 kilometers. This means that the Sun is roughly 109 times wider than Earth, making option D the most accurate description of their size comparison.

A (the same) YOUR ANSWER

This choice incorrectly suggests that the diameters of the Earth and the Sun are identical. In reality, the Sun is significantly larger than Earth, making this option factually inaccurate.

B (2 × greater) YOUR ANSWER

While this choice indicates that the Sun is larger than Earth, it vastly underestimates the actual difference in size. The Sun's diameter is not just double that of Earth; it is much more substantial, making this option misleading.

C (5 × greater) YOUR ANSWER

This option again underrepresents the size of the Sun compared to Earth. Although the Sun is indeed larger than Earth, being only 5 times greater fails to capture the true magnitude of the difference, which is closer to 109 times.

D (109 × greater) CORRECT

This option accurately reflects the size comparison between the Sun and Earth, as the Sun’s diameter is approximately 109 times larger than that of Earth. This significant difference underscores the vast scale of our solar system's star compared to our own planet.

Conclusion

Understanding the relative sizes of celestial bodies is crucial in astronomy. The Sun's diameter is approximately 109 times that of Earth, highlighting not only the immense scale of the Sun but also the differences among various astronomical entities. This knowledge aids in comprehending the structure of our solar system and the dynamics of planetary orbits.

Compared with Earth's diameter, the Sun's diameter is best described as approximately

Compared with Earth's diameter, the Sun's diameter is best described as approximately 109 × greater.

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