Writing CD IELTS Iran solar-powered pump and filter

IELTS Writing Task 1 & 2
CD IELTS Iran

Task 1: The process of producing drinking water using a solar-powered pump and filter.

Task 2: Many people put their personal information online (address, telephone number,credit card number…) for everyday activities such as socializing on social networks or banking purposes. Do you think it is a positive or negative development?​