Paige turns on an electric space heater in the center of her bedroom. the coils glow, and the room becomes warmer. how is heat reaching the
corners of paige's bedroom?
oa by conduction and convection
ob. by conduction and radiation
o c. by radiation and convection
od. by radiation only

clinically, some people often have repeated allergies, eczema and respiratory infections or other parts of the infection, in this case, in addition to some routine tests such as tests for white blood cells, immunoglobulin series, lymphocyte subsets, etc., the five immune immunoglobulin tests are also necessary.

the electromagnetic energy from the sun arrives in the form of visible and invisible light.