Conditional 0 тип. Помогите пожалуйста.Английский язык.

Question

Conditional 0 тип. Помогите пожалуйста.Английский язык.

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Answer 1

2)If you send an email it is free.
3)It is dangerous if you don't wear a seat belt.
4)If you have an injection it isn't usually hurt.
5)If you don't water plants and flowers they die.
6)If the sea isn't calm it isn't safe to swim