Answer:
Service benefits the helpers and those helped.
Explanation:
The whole article talks about how service helps not only the community, but the people that do the service.
Answer:
A lot of advice is available for people who want to form new habits for themselves.
Explanation:
Since the antecedent is plural, then the pronoun must be plural. People wishing to form new habits ought to be given a series of advice on how to go about it.
