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Read the following statement and write the cause where you agree ordisagree with it."To the weak problems are stumbling blocks. To the brave they arestepping stones." |
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Answer» INTERGALACTIC gas is so tenuous that it emits no LIGHT of its own. ... Instead astronomers study it indirectly by observing how it selectively ABSORBS the light COMING from faraway sources known as quasars. |
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