Glyphosate crossword puzzle

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Across
  1. 3. Where is it mostly used?
  2. 5. What does it block to kill the plants?
  3. 6. What was it initially developed for?
  4. 7. Natural alternative to Glyphosate
  5. 8. What is Glyphosate supposed to kill?
Down
  1. 1. Stops the ... of plants.
  2. 2. Weeds can be ... against it
  3. 4. What is Glyphosate?