<p>Every day, millions of tiny stony bits (falling) quietly into the atmosphere, burning briefly (as) meteors, and leaving (behind) a vaporized residue that filters (slowly) to Earth. No error</p>
<p>A was the correct answer. However, I choose A just because I thought it sounded wrong, and I don't actually know a good reason. Can someone please explain why A is the answer?</p>
<p>the inappropriate verb form ‘falling’ makes the sentence a fragment</p>
<p>The original sentence is a fragment, as it has a subject (millions of tiny stony bits) but no verb. Falling <em>looks</em> like a verb, but it’s actually functioning as an adjective.</p>
<p>If we discard the last several parts of the sentence, we are left with:</p>
<p>Every day, millions of tiny stony bits falling quietly into the atmosphere.</p>
<p>Here’s the fix:</p>
<p>Every day, millions of tiny stony bits fall quietly into the atmosphere.</p>
<p>See the difference?</p>
<p>Hope this helps!</p>
<p>Thanks that makes sense.</p>