The best type of graph to use when comparing how one variable effects another bar graph
line raph
pie chart
all of the above

Bar Graph is the answer..

Bar graphs are used to compare things between different groups or to track changes over time. However, when trying to measure change over time, bar graphs are best when the changes are larger..

Explanation:

Hope it helps you..

Your welcome in advance..

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blue

light-years

magnitude

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds