Multicast: ip pim query-interval and ip igmp query-inerval

ip igmp query-interval is used to query the reports to find out if any receivers are still active on the LAN segment

ip pim query-interval is used to send PIM Hello updates

Multicast: Hosts that dont support IGMP

If there are hosts that dont support IGMP on a LAN Segment.
The router connecting that LAN segment can join IGMP group statically on their behalf

int f0/0
ip igmp static-group 235.1.1.1

Here if we ran a ping 235.1.1.1 from the source, the Router will not respond only the receivers ( End Hosts) will respond.

Whereas in the igmp join-group, even the router's interface responds.

Also (*,G) entry for join-group will have flags C (Connected) & L(Local)
The static-group will have flags C (Connected) only..