1.
1. EXERCISE 01
1.C 2. B. 3. D 4. C
5.D 6. A 7. C 8. B
9.D 10 B
2. EXERCISE 02
1.C 2.A 3.C 4.C 5.C
6.B 7.C 8.B 9.B 10.B
2. EXERCISE 03
1.B 2.B 3.C 4.C 5.B
6.B 7.C 8.C 9.A 10.A
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THE WARNING SIGNS ON CONTAINERS OF LABORATORY CHEMICALS AND APPARATUS Warning signs these are symbols which indicates a possible danger, problem, or other unpleasant situation.
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