Time to help out

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Across
  1. 4. /paved walkways beside a street
  2. 6. /a work of art painted onto a wall
  3. 7. /to soil or harm the environment by human activities
  4. 10. /an establishment dispensing food to the needy
  5. 11. /getting rid of or throwing away
  6. 12. /people who have no home or permanent residence
  7. 14. /processed and reused; collected for the purpose of recycling
  8. 15. /especial respect or high regard
Down
  1. 1. / to influence and encourage someone to do something
  2. 2. /a place that provides living space and care for elderly people and the chronically ill
  3. 3. /a group of people who live in the same area
  4. 5. /natural abilities or skills
  5. 8. /to do a job without expecting pay or reward
  6. 9. /to encourage someone to do something
  7. 13. /garbage scattered around cares sly