How is heat transfer by radiation different than transfer by convection or conduction? A. heat moves from cold objects to hot objects during radiation.

B. radiation is a method by which heat is transferred.

C. heat transfer by
radiation can only occur during the day.

D. Matter is not required for heat transfer by radiation.

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Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.