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Warm air raising toward the ceiling or attic of a house warm air is less dense than cool air.
Wind is an example of a convention current sunlight or reflected light radiates heat.
What does cardiovascular mean????????????????????????????????????????????????????????????????????????
Bacteria to amphibians. amphibians started to turn to fish and some started walking to land. They started laying eggs and turning into reptiles. those reptiles started growing hair turning them into four legged mammals. the mammals then turned to primates which evolved into us.
