mercury becomes liquid at room temperature
no it doesnt -_- Mercury will freeze (become a solid) at -38.83 degrees Centigrade or -37.89 degrees Fahrenheit.
Yes, harden is a verb.
No. The word "harden" is a verb.
"Harden" is the present tense. Ex. I harden the the cement by allowing it to dry. The past tense is hardened. The future tense is will harden.
The present tense of "harden" is "harden." For example, "The clay hardens as it dries."
it will harden in a hot temperature
yes after a while it will harden
You are saying...
Jonathan Harden was born in 1979.
Thomas Harden was born in 1805.
Wolf Harden was born in 1962.