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The orbital radii of four planets in our solar system are shown in the following table.

Orbital Radii
Planet Orbital Radii (AU)
W 5.2
X 0.72
Y 0.37
Z 19.1

Which planets are likely to be gas giants?
W and X
X and Y
Y and Z
W and Z

1 answer

In our solar system, gas giants are typically found farther from the Sun and have larger orbital radii. The gas giant planets are Jupiter and Saturn, which have larger orbital radii compared to terrestrial planets, which are closer to the Sun.

Looking at the provided table:

  • Planet W: 5.2 AU
  • Planet X: 0.72 AU
  • Planet Y: 0.37 AU
  • Planet Z: 19.1 AU

Planets W and Z have the largest orbital radii among the four planets listed. Since gas giants are usually further out in the solar system, it is likely that W (5.2 AU) and Z (19.1 AU) are the gas giants.

Therefore, the correct answer is W and Z.