The correct answer is: [B]: "sludge" .
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The Correct choice is : C. <u>Solids</u>
Sound waves need a medium to propagate, and the most suitable medium for that is solids, where it travel the fastest or with greatest efficiency.
In 1815, Mount Tambora erupted on Sumbawa, an island of modern-day Indonesia. Historians regard it as the volcano eruption with the deadliest known direct impact: roughly 100,000 people died in the immediate aftermath.
There are many ways in which you can help conserve nonrenewable resources. You <span><span>could conserve nonrenewable resources by not using them.
Hope it Helps
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