Ammonia

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Across

4. ammonia is _____ and poisonous

6. who was ammonia discovered by?

8. ammonia is made of _______ and hydrogen

10. ammonia is formed naturaly in soil, decaying plants, _______ and animal waste

Down

1. ammonia is commonly used it f________

2. a gas made by humans and nature

3. ammonia poisoning can cause a weak _____

5. haber worked at his father's _________ business.

7. where did haber fritz attend school?

9. ammonia can irritate the skin, eyes, ____, throat and lungs.

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