Кроссворд "Volunteers"

Volunteers
Across
4. having lived or existed for many years
7. the air, water and land in or on which people, animals and plants live
9. a musical or dance performance before an audience
13. people who can't use a part of their body
14. people who have very little food or money
16. to give someone knowledge, to train, to instruct
Down
1. people who haven't place to live in
2. a person who helps without any money
3. to support a person, organization by giving money
5. a volunteer -led, humanitarian organization in the USA (two words)
6. anything that happens, especially something important or unusual
8. a person who has escaped from his own country for different reasons (political,
religious...)
10. something given to a needy person
11. unable to see
12. to collect money
15. a child whose parents are dead