It is a dry-erase board that you use t write on with special markers.
Each Gemini mission typically had two astronauts onboard the spacecraft.
"Bookwork" is one word, not two.
no it is not an one word it is of two word
Hipbone is one word.
I think the word "ongoing" is only one word, but it has two syllables that are two separate words.
Two
The word "hairbrush" is typically written as one word, not two.
One word, two syllables
It is one word.
one word
"Hardworking" is one word.