Question

1. choose the best answer.

the inner planets mercury, venus, earth, and mars are characterized as ______ planets.
rocky
gas
water
green

Explanation:

The inner planets (Mercury, Venus, Earth, Mars) are known as rocky planets because they have solid, rocky surfaces (composed mainly of silicate rocks or metals), unlike gas giants (outer planets like Jupiter, Saturn) which are mostly gaseous. The other options (gas, water, green) don't fit their composition/characteristic.

Answer:

rocky (the option with "rocky" text, assuming it's the first option with the label "rocky")