The eight letter word that is a collective noun for listeners is an audience of listeners.
Yyyy
There is no specific collective noun for broccoli. The collective nouns that begin with 'h' are a herd, a hoard, a house. Collective nouns are an informal part of language. Any noun suitable for the situation can be used as a collective noun, for example a harvest of broccoli or a heap of broccoli.
'Indus' is the only one.
Leucite is a mineral. It begins with the letter L.
The Jetsons Jimmy Neutron
llama
All letters J begin (and end) with the letter J.
If by animal collective you mean a literal collective of animals, then a sedge. If, on the other hand, you mean a song by Animal Collective: "Seal Eyeing." ;D
Only the letter N.
There are no animals that begin with the letters uq.
j
zoo zebra
Six letter words that start with the letters wh:whackowhackswhackywhaleswhammywharfswheelswheezewheezywhencewhinedwhinerwhippywhirlswhiskywhiterwholly
buffcuffmuffpuffballbellbillbullcallcellmallmillmullnullpillpullrollsillselltilltelltallwallwellwillbassbosscussfusshisskisslessmessmissmassmosslosspasssasstossmuttmittbuttdollfallfellfillfull
Ash
ibex
Norway.
saddestsailingsalvagesardinesausagescallopscalpersceneryscooterseagullseaportsecrecysegmentshampoosheriffsignifysilenceskilletslanderslendersmartersmoldersmugglesneakersocietysomewayspanielsqueezestaminasubject