Under which condition below would you expect a glassy extrusive rock like obsidian to form

Quick cooling on earth’s surface is the condition that you would expect a glassy extrusive rock like obsidian to form.

To add, an obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. It is made when felsic lava emitted from a volcano cools swiftly with minimal crystal growth.

the following is queen elizabeth’s purposes:

- to encourage the parliament that the technique of picking successors to the seat based merely on birthright needs to be reviewed.

- (not) to convince the parliament that her kid should not be measured as a likely choice for heir to the english power.

- to persuade the parliament that merely since she has a child does not assure that the kid will be a capable leader.

- to sway the parliament how shattering it could be if they proceeded discourteously concerning her or her child.