What is the transfer of energy by electromagnetic waves? a) radiation b) conduction c) convection d) thermal energy

The best answer to your question would be B: radiation.
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Non metal is an element or substance that is not a metal metal is a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivitymetalloid is an element (e.g., germanium or silicon) whose properties are intermediate between those of metals and solid nonmetals. they are electrical semiconductors.