Which of following is used in thermometer?

Which of following is used in thermometer?

درج ذیل میں سے کون سا تھرمامیٹر میں استعمال ہوتا ہے؟
Explanation

Mercury is used in thermometers because It has a high coefficient of expansion so that even a small rise in temperature 

Galileo Galilei is claimed to be the inventor of the thermometer.

ND5-07-2023