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Team of volunteer scientist is catching native breeder keystone fish to get sample and medication for statistic contamination in global warming and climate change for nature and wildlife conservation
Applause, volunteer group and people in park for charity event, community service and teamwork. Volunteering, happy and men and women excited, cheer and celebrate for donation, ngo and outreach goals
Park, woman and volunteers discussion with tablet for support, community project or nature sustainability. Humanitarian, recycling or senior leader in charity service and NGO for pollution cleanup
Volunteer, reading and senior woman in nursing home for community service, social responsibility or outreach project. NGO, elderly person with helper for knowledge, happiness or literature book

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