Heat transfer by conduction occurs when molecules (1) flow as currents through liquids (2) form waves that travel through space (3) become less dense and rise
It is none of the three. Conduction occurs when a heat source directly is touching an object.
Explanation: Number 1 is convection. Key term: convection currents. Number 2 is radiation, as radiation can pass through space. Number 3 is just explaining a part of the convection current.
Answer from: Quest
c- cold periods in earth's history during which glaciers covered much of the surface.
In which of the following belong to a category called the main group of elements? nonmetals. transition elements. halogens. alkali metals. it can be more than one answer!
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