Question

after coming into contact with a warm hand, an ice cube begins to melt. this is an example of which mode of heat transfer? conduction radiation convection

Explanation:

Heat transfer by conduction occurs when two objects are in direct contact. Here, the warm hand and ice - cube are in direct contact. Radiation is heat transfer via electromagnetic waves (no contact), and convection is via fluid (liquid/gas) movement. Since there's direct contact between hand and ice - cube, it's conduction.

Answer:

Conduction