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Answer:
To put it simply, the models need to be smaller to fit on the Earth. If, the model was to scale, we'd risk getting crushed.
Explanation:
Answer:
B) lighting a match
Explanation:
a chemical change is a chemical reaction involving the rearrangement of atoms. While a physical change can often be reversed, a chemically change typically cannot.
Always remember, if something is being lit on fire then it is a chemical change, since fire breaks the bonds in between the atoms.
Freezing water is a physical change because it can be reversed and does not alter the substance, which is water. a change in state i always a physical change
tearing up a piece of paper is a physical change since nothing on a molecular level has changed. its still paper.
Dissolving sugar in water is a <em>homogenous mixture</em>, meaning that it looks uniform without, however it is still only sugar and water, so it is a physical change.
DNA replication D) I and III only take(s) place during either interphase or mitosis in animal cells? I. The re-formation of nuclear membranes II. Pairing of homologous<span>chromosomes III. </span>
