12.1B-Nitrogen_and_sulphur-QUIZ-4

12.1B-Nitrogen_and_sulphur-QUIZ-4

When you finish, wait until a pop-up window appears with your name and score in it, if it doesn't appear...... wait longer....... be patient.

1. A
2. B
3. C
4. D
1. A
2. B
3. C
4. D
1. A
2. B
3. C
4. D
1. A
2. B
3. C
4. D
1. A
2. B
3. C
4. D
1. A
2. B
3. C
4. D
1. A
2. B
3. C
4. D
1. A
2. B
3. C
4. D
1. A
2. B
3. C
4. D
1. A
2. B
3. C
4. D
1. A
2. B
3. C
4. D
1. A
2. B
3. C
4. D