Does deleting an adGroup cascade to its ads and keywords?

[Reed]

I'm looking for a verification that if I use the updateAdGroup call to
the adGroups service, and set the status to "Deleted" that this also
deletes the ads and keywords in that adGroup. Or is it necessary to go
through and do calls to delete the individual ads and keywords that
are in the adGroup?

thanks
-reed

[AdWords API Advisor]

Hello Reed,

No, deleting an ad group from either the web interface or the AdWords
API won't delete the ads and keywords in that ad group. The ads will
never be shown, of course, because the ad group isn't active, but
their status should remain untouched.

Cheers,
-Jeff Posnick, AdWords API Team