If a severe storm damages a major power line, why might a town many miles away from the damage experience a blackout?

Because the power grid is an interconnected system.

Because power plants automatically shut down in bad weather.

Because electricity is scared of storms and stops flowing.

Because the town's local generator ran out of fuel.

An engineer upgrades the transformers in a substation to deliver more power. However, this causes frequent burnouts in the wiring of older homes in the neighborhood. This situation illustrates that a change in a system:

only affects the specific part that was changed.

can have unexpected and negative effects on other connected parts.

is always an improvement for everyone who is connected to it.

requires the entire system to be shut down and rebuilt from scratch.

Because it is very expensive to build.

Because it uses multiple types of wires.

Because all its parts are connected and must work together in balance.

Because it is managed by a single utility company.

The new plant will be quieter than the old one.

The town's existing wires and grid infrastructure might be too old to handle the increased power, causing overloads.

Consumers will immediately have to buy new appliances that are compatible with the new power plant's energy.

The cost of electricity will automatically go down for everyone in the town.

The process of exchanging old parts for new ones.

A situation where a solution to one problem may create a new, different problem.

An agreement between two companies to share the cost of building a power line.

The final decision an engineer makes after considering all possible options.