Answer:
Volunteering is a perfect opportunity to gain certain work experience which can significantly influence one's future. When we help others, it increases our self-esteem and makes us satisfied. Whether one is going to volunteer in his/her own community or in a national group depends on his/her preferences.
It could be argued that it is better to volunteer for an environmental group in your community. First of all, volunteering in one's own community is time-saving, because you do not have to travel to work every day. A person has more free time for the other activities that he/she wants to participate in. Moreover, it is quite fulfilling to do something useful for your own community and since you spend a lot of your time there, you are likely to notice the changes in the environment and results of your work.

<h3>Active voice:</h3>
People believe that Pluto is no more a planet.
<h3>Passive voice:</h3>
It is believed by people that Pluto is no more a planet.

Whenever.....
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