The figurative language used is Oxymoron.
It is a Oxymoron because the words contradict each other when it says “ we lay down our arms” to “we can reach out our arms”
Air is a homogeneous mixture.
Heterogeneous mixture means that the components are not evenly distributed, just like a mixture of sand and water where we can identify the individual components visually.
It’s 87 because ur mom told me and it’s how it works
