I have pages on my site that Google doesn't like, so I've always kept ads off of them. But lately they're showing up in the policy center, anyway!

We know that to use Adsense on a page, you have to have this in the header:

<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-12345" crossorigin></script>

And then an <ins...></ins> tag where you want the ad.

First question: If I remove the <script> but leave the <ins> tag, is that OK?

Second question: Opposite of the first question, if I leave the <script> on the page but remove the <ins> tags, is that OK?