dear editor,<br /><br />I have a question in your edited document as follows.<br /><br />In your edited sentence (see below), I think the verb "causes" should be "cause", since the subject are plural. Which one is correct? causes? or cause? please let me know as early as you can.<br /><br />
<p>This phenomenon is well explained with the blocking effects&mdash;that is, smaller particle size and diffusion on the collector surface <strong>causes</strong> the accumulation of nano-ZnO to arise more at lower flow rates and estimation with surface coverage (q) (e.g., 0.028, 0.050, and 0.078 at 1, 2, 3.6 mL/min velocity).</p>
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