What is a term used to describe going on vacation learning about ways to the environment and taking care not to harm the local environment during the trip?

Ecotourism, like a vacation directed towards the outdoors, looking in ways to make it better, obviously not harming it in the process.

This would be a true statement

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.