<span>The upstairs of a house being warmer than the downstairs is an example of heat transfer by -- convection</span>
Answer:
the answer would be the 3rd answer
Explanation:
a half life is the time it takes for half of a radioactive substance to decay
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The cell cycle or cell-division cycle is the series of events that take place in a cell leading to its division and duplication of its DNA (DNA replication) to produce two daughter cells.
Answer:
galaxy
Explanation:
there are many univereses
Any property that is measurable, whose value describes a state of a physical system.