What is significant about the temperature -40°C?
A. It's the temperature at which Fahrenheit and Celsius
thermometers read the same.
B. It's the temperature at which Kelvin and Celsius thermometers
read the same.
C. It's the boiling point of mercury.
D. It's absolute zero.

A. It's the temperature at which Fahrenheit and Celsius

thermometers read the same.

a plasma is a warm ionized gasoline consisting of approximately equal numbers of definitely charged ions and negatively charged electrons. the characteristics of plasmas are notably unique from the ones of ordinary neutral gases in order that plasmas are considered a awesome "fourth kingdom of remember."