Heat is added to a solid substance. when enough heat is added,

u.s. presidents buried at arlington national cemetery include john f. kennedy and william howard taft. the kennedy gravesite is the final resting place not only of the former president, but also his wife jackie kennedy, his two brothers robert and edward kennedy, as well as a memorial to his brother joe jr.good luck

explanation:

answer; the intervening variable;

answer; traditional culture;

answer; interactionist persprctive;