Before using any chemical in the lab, why should one first read the material safety data sheet (msds)?

this is important for laboratory safety.
the msds tells where to purchase chemicals.
the msds provides the chemical formulas.
this is important for analyzing experiments.

a adaptation is when organism changes itself to fit the environment

ex. when its cold outside i wear a jacket

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the answer is c a tornado

it's diluted or concentrated

in a diluted solution, you can add a lot more solute but in concentrated only a little more can be added