What is one way to describe elements? a. building blocks b. they break down easily c. smallest particles of material d. they are the most expensive materials on earth

it's c. elements are placed in rows based on how may valencies electrons have.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

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