The subordinating clause of this sentence is... when we went to the Fourth of July picnic. Hope this helps!
Answer: Hail falls for at least 30 minutes everytime.
Explanation: It takes this long because the updrafts in hail take a while to produce and a long time before it ends.
Please provide the passage to be able to receive an answer
If a dog lost a litter of puppies she might foster a litter of kittens because she think they we here litter