Roberto fulton improved traveling by
a. building the first steam locomotives
b. using a steam engine to powers a steamboat
c. invention the autobomile
d. building the first tunpike

Robert Fulton was famous for his steamboat, especially for his steamboats Clermont and Nautilius, which he built for Napoleon. His steamboats had strong engines that made long-distance travel possible, which was a very important innovation at the time.

The correct answer is B: using a stream engine to power a steamboat.

Abarrier that transport

Ifound the exercise on the internet. attached is the list mentioned above.in order for a compound to be considered optically active it can't have any axis or plan of symmetry. the molecule  shouldn't also  be superimposable on its mirror image.with such considerations, the compounds that are optically active are: -third compound on the first image is optically active; -second and third compound from the second image are optically actives.