20. melting, evaporating and sublimation ______ heat. nothing happens remove lose require

20. melting, evaporating and sublimation ______ heat. nothing happens remove lose require
Answer
Brief Explanations:
Melting (solid - to - liquid), evaporation (liquid - to - gas), and sublimation (solid - to - gas) are endothermic processes. They need heat input to break intermolecular forces and change the state of matter.
Answer:
require