5. Which challenge did Chinese immigrants to California face in the 1850s?

Chinese immigrants were also fighting for their lives. During their first few decades in the United States, they endured an epidemic of violent racist attacks, a campaign of persecution and murder that today seems shocking.

Mostly a service

Explanation:

Spa operation is mostly a service, tangible goods are materials you can hold, which has physical nature and feel such as household materials, soaps, machines, cars and computers. On the other hand, services hardly involve physical goods which can be touched, it is something you offer that is not a physical good and spa operations does not involve the exchange of physical goods and as such is mostly a service industry. consultancy service is another example.