Scientific discovery

2. the gas we exhale.
3. Mixing chemicals may cause a chemical ________ .
4. a detailed study of a subject, especially in order to discover (new) information or reach a (new) understanding
8. a synonym for "dangerous"
9. a quality that exists when two people understand and are attracted to each other
11. the action or state of making or being made impure by polluting or poisoning.
13. the kind of industry which produces medicines
14. the release of a gas

1. the amount of medicine you should take
5. a successful way of curing an illness or dealing with a problem or difficulty
6. a piece of paper on which a doctor writes the details of the medicine or drugs that someone needs
7. chemicals used to kill unwanted insects
10. an important discovery or event that helps to improve a situation or provide an answer to a problem
12. a good way to protect you against COVID-19