WHICH DISCOVERY OR DISCOVERIES… 1. was/were made outside a laboratory? 2. was/were a result of not cleaning up? 3. can save lives? 4. developed out of a failed idea? 5. was/were a result of different experiment? 6. was/were a result of two lucky events?
1 Cellophane
2 Penicillin
3 Safety glass
4 Sticky notes
5 The microwave oven
6 Penicillin
Объяснение: