Answer:
I am a word. I become longer when the third letter is removed. What am I?
The dirtier I get, the whiter I am. What am I?
I am seen in the water. If seen in the sky I am in the rainbow a jay's feather and lapis lazuli.
I am useless when together but useful when I am broken apart. What am I?
I am found on Mercury Venus Earth and Mars but not on Jupiter or Saturn. What am I?
I march before armies a thousand salute me. My fall can bring victory but no one would shoot me. The wind is my lover one-legged am I. Name me and see me at home in the sky.