Because atoms are the small and can't be seen by your eyes. It is so small that scientists need to use a model. A model help scientists study things. So, scientists needs to study atoms using models.
HEY BUDDY THE ANSWER IS
It processes the environment and sends out signals.
Always use least amount of sig figs possible. So this 9.7 would be (answer): 2 sig figs
Answer:
Its difficult to measure the volume of gas because its hard to make sure its only a uniform layer of gas in what ever youre measuring in it.
Explanation:
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