Which major planet has the largest . . . A. semimajor axis? B. average orbital speed around the Sun? C. orbital period around the Sun? D. eccentricity?

Answers

Mercury, Neptune, and Jupiter

Explanation:

Mercury has the largest semimajor axis that is 5.791 x 107 in km.

Mercury is the planet with the fastest speed, which has an average orbital speed around the sun for about 47.87 km/s.

Neptune has the longest orbital speed around the sun of any planet in the Solar System which is equivalent to 164.8 years (or 60,182 Earth days)

Jupiter has the largest eccentricity.

Hence, the answer is Mercury, Neptune, and Jupiter respectively.

Mercury, Neptune, and JupiterExplanation:Mercury has the largest semimajor axisthat is 5.791 x 107 in km.Neptune has the longest orbital speedaround the sun of any planet in the Solar System which is equivalent to 164.8 years (or 60,182 Earth days)Jupiter has the largest eccentricity.Hence, the answer is Mercury, Neptune, and Jupiter respectively.