Which industries are helped MOST by Cuba's location on the ocean? tourism and fishing
fishing and tobacco
sugar and health care
tourism and health care

The answer is fishing and tobacco, please let me know if I am incorrect.

Explanation:

This tobacco product is highly prized by many people and provides a good income to the country. Cuba's location on the ocean gives it easy access to rich fishing waters. Fishing provides food for Cubans, and it gives the country another product to export. One of the fastest-growing industries is tourism.

this null effect is caused by a weak manipulation and ineffective internal validity. in a scientific study, as the one dr. morimoto is trying to perfom, internal validity refers to the confidence placed in the cause-effect relationship and to how well an experiment is done and able to eliminate confounding variables.