Well I have a few questions... first my question is... is this powdery mildew? We've had a lot of rain recently but not a lot of heat to quickly dry up the leaves of my zucchini...

Second, I think something took a bite out of another zucchini plant (a different plant from the first picture), the plant should still survive right? The leaf looks a bit mangled though...

Third, we had a bit of a windy day today... all my bean plants got their first true leaves literally blown off and I noticed (because it was a transplant and it was a bit leggy and I didn't put the soil up all the way to the top to stabilize the plant but I have now to prevent it from happening again) my golden zucchini plant got knocked over, its stem slightly bent down, not completely cut or anything, but stem a bit damaged... I cover the plant up with soil to stabilize it and bury in the damage, do you think the plant will still survive?

Thanks for all the help/input!