How were steam-powered ships different from sail boats?

A. Sail boats could travel against the current on a river.

B. Steam boats could travel against the current on a river.

C. Steam boats could carry large cargoes.

D. Sail boats could carry large cargoes.

The appropriate answer is B. steam boats could travel against the current on a river. This statement means that steam boats could travel upstream. The steam engine in steam boats allowed them to travel upstream possibly against a strong current. Sail boats rely on wind or the downstream flow of the water to move it from one location to the other. The invention of the steamboat revolutionised transportation of goods and people on large navigable rivers.

The answer is D) Sail boats could carry large cargoes.