Which sentence correctly demonstrates the zero conditional, used to express a general truth or scientific fact?

Explanation

The zero conditional uses the present simple tense in both the ‘if’ clause and the main clause to express something that is always or generally true, such as a scientific fact, giving ‘If you heat water, it boils.’ This differs from the first conditional, which uses ‘will’ in the main clause to describe a specific, likely future result rather than a universally true fact. Explore more English MCQs on mcqstutor to keep practicing.