Environmental problems and Natural disasters

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Across
  1. 2. Help or assistance given to people in need.
  2. 3. A person who is forced to leave a dangerous place.
  3. 5. Scattered pieces of rubbish or remains after a destruction.
  4. 6. A person who manages to stay alive after a disaster.
  5. 7. Soft grey powder left after a volcanic eruption.
Down
  1. 1. A violent tropical storm with strong winds and heavy rain.
  2. 2. A massive slide of snow and ice down a mountain.
  3. 4. An amount of something provided for use.
  4. 5. A long period of time with little or no rain.