A. True
you can see plasma. Or, technically, you can see the energy (light) given off by a plasma.
The first answer would be:
Measure the sequence of events on earth over time.
I believe the second answer would be:
The age of earth. ( I say this because geological time is used to describe timing and the relationship of events in earths history)
I’m not sure about number 3 but I hope this was somewhat useful!!
Metallic (w) with a boiling point of 566”
