Answer: Inactive.
Explanation:
The meaning of the word 'inert' is 'not moving'. In the excerpt, it is described that the machines were not moving, as if they were dead. The word 'inactive' has the same meaning - it stands for something that is not operating, moving or is out of function. This is why we could replace 'inert' with 'inactive' in this example.
There are many words with the use of this suffix, like the word 'consonant'.
Answer: the moon is always half illuminated by the sun, but the revolution of the moon around the earth makes it seem as if it is changing shapes. this is also known as the moons "phases."
Explanation: The sun and moon are in different places