Select all the correct answers. Which substances are made up of polymers?
O
O
O
O
DNA
a glass bottle
ice crystals
the proteins in hair
rubber car tires
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Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

Which three statements represent the benefits of performing experiments using computer simulations?

At the current rate, a graph of carbon dioxide produced by fossil fuels over time would slope upward slope downward be horizontal be vertical