Our Environment

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Across
  1. 4. Flow of energy in an ecosystem is always
  2. 5. Who are classified into herbivores, carnivores, omnivores and parasites
  3. 6. In an ecosystem, herbivores represent which consumers
  4. 8. Which chemical cause depletion of ozone layer
  5. 9. Who occupies the third trophic level in food chain
  6. 10. An autotroph
  7. 11. The range of different life forms is a criteria used to measure ______ of an area
Down
  1. 1. Excessive exposure to UV rays causes
  2. 2. An abiotic component of ecosystem
  3. 3. Trophic level in an ecosystem represents which level
  4. 7. Burning of waste substances usually at a high temperature of over 1000'c to convert them into ashes is called