Subordinate means someone who is of lower rank in a job. So the manager spoke to someone in a lower rank than him in a cordial tone.
Magma rises through cracks or weaknesses in the Earth's crust. When this pressure is released, eg as a result of plate movement, magma explodes to the surface causing a volcanic eruption<span>. </span>
The revival of a classical or treament of art
The Correct ANSWER : D - To quickly generate ideas and support for a piece of writing.
Extraneous means that something is irrelevant or something that has nothing to do with a particular subject. I hope this helps! :)