Environmental Crossword

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Across
  1. 2. Long period of low rainfall, leading to a shortage of water
  2. 4. A barrier constructed in a river to hold back water in
  3. 6. Energy from the Sun
  4. 8. Dense forest found in tropical areas with heavy rainfall
  5. 9. Type of light/bulb that saves energy
Down
  1. 1. Dry climate or land with very little rainfall
  2. 2. Dry land covered with sand
  3. 3. Overflow of a large amount of water beyond its normal limits
  4. 5. Type of pollution caused by airplanes
  5. 7. A ____________ is used to generate power from the wind