D. A set of steps that help scientists gather knowledge
The answer would be A: its container.
Gas will expand to fill whatever container it is put in.
Answer:
Gravity
Explanation:
Without gravity it would just float in space.
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Because Boron likes to lose 3 electrons when it undergoes ionization, we draw a boron ion like a helium atom, with just 2 electrons in the first shell, and 0 in the second
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