Answer:
The use of the Pacific Ocean for trade and commerce is one big reason to consider Hong Kong and San Francisco as part of the same region. In addition, many current and former residents of Hong Kong feel a special kinship with San Francisco's Chinatown.

Answer:
Polluting energy system are given below.
Explanation:
- Polluting Energy Systems like the Industrial systems that are stationary power systems along with the mobile pollutant system like vehicles and examples of heating systems like those of the air furnaces, hot water boilers, and electric heat pump.
- Example of Propulsion System is spacecraft and aircraft from a launch vehicle. Turbines are also characterized by having a propulsion system. Cooling Systems like the coolants in vehicles, computers and air conditioners and refrigerators, etc.
- All these follow the traditional energy system models as they stay locked from outside and derive the system by the energy created due to electric induction.
The shape and structure o it. i like the design of the tower. I take in consideration that it took so much time to build. A lot of people like to visit the tower because it is really famous. The tower grew more fame as the singer Drake used it in his songs a few times. He often goes there. Many people like the tower because it is cool to look at.
If upwelling stopped it would cause the food chain to break thus causing the fisheries to collapse