Can a Cleric/Paladin cast spells requiring somatic components when wielding weapon+shield emblazoned with holy symbol?

Does Uncanny Dodge work against each successful attack made by opponent who has multiple attacks or is it one attack

Eldritch Knight and Arcane Trickster don’t use a spellbook

Also Primeval Awareness is arguably the worst class feature in the game…

Ranger Multiattack defense, does the AC +4 bonus also apply to multiple attackers who hit you in the same round?

Does it count as the action it is, for example a bonus action to do a dash action or attack action?