Question

base your answers to questions 38 and 39 on the diagram below and on your knowledge of earth science. for each statement or question, choose the word or expression that, of those given, best completes the statement or answers the question. the diagram represents a model of a portion of our solar system. 21 in our solar system, the orbits of the planets are best described as a elliptical with the sun at one focus b elliptical with earth at one focus c circular with the sun at one focus d circular with earth at one focus

Explanation:

To determine the correct description of planetary orbits, we use Kepler's First Law, which states that planets orbit the Sun in elliptical paths with the Sun at one focus. Option B is incorrect as Earth is not the central focus. Options C and D are incorrect because orbits are elliptical (not circular) and centered on the Sun, not Earth. Thus, the correct answer is A.

Answer:

A. elliptical with the Sun at one focus