Unit 2 vocabulary

123456789101112131415
Across
  1. 4. A person you compete or fight against
  2. 5. Something that does not cost too much money
  3. 7. Not many; not enough; having a small amount
  4. 8. A sudden event that causes great harm
  5. 11. Something useful that people can use
  6. 12. To make air, water, or land dirty
  7. 15. Related to nature and the world around us
Down
  1. 1. Something good that you get from something
  2. 2. To give something that is needed
  3. 3. Lasting for a long time
  4. 6. A different choice you can use instead
  5. 9. The answer to a problem
  6. 10. The chance that something bad may happen
  7. 13. A very serious or dangerous situation
  8. 14. A group of parts that work together