Assignment 4 --> Cause and Effect

1.A:Vomiting in the morning is caused by    pregnancy.
1.B:Dizzy symptoms are caused by stress.
2.A:The rain caused discomfort.
3.A:Negligence caused the accident.
9.A:A little exercise cause obesity.
9.B:Headache caused by reading more than 10 books.
13.B:Have a backache caused by standing for long periods.