A. <span>the compound subject is rain and wind
A compound subject is 2 or more subjects connected by 'and, or, neither, or nor'
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I would say that it is the best to first plan out how you want to spend your time by making a schedule of some sort
You could put up posters, volunteer at animal hospitals, or maybe even research them to know more about their needs.
Yes, the phrase is a sentence fragment. It doesn’t make a complete sentence while standing alone. It’s not a full sentence.