1REVIEWER M4

What is one reason some cities have banned plastic shopping bags?

• To reduce traffic

• To increase sales

• To protect the environment

• To improve technology

What principle do many inventors consider important today?

• Inventions should be expensive

• Inventions should be complex

• Inventions should help protect the environment

• Inventions should be traditional

What does the term "improvement" refer to?

• A rule for doing

• An enhancement or betterment

• A distinctive aspect

• To consider when making a decision

Which century saw many significant technological advances, such as the microchip?

• 18th century

• 19th century

• 20th century

• 21st century

Batteries store power when they are charged and ________ it when they're used.

• release

• contain

• absorb

• hold

People usually worry during a ________, but bad situations can also lead to opportunities.

• crisis

• celebration

• vacation

• trend

Companies that ________ cause a lot of pollution sometimes claim they will pollute less in the future. However, there's no guarantee that they will do this.

• finally

• formerly

• currently

• rarely

What does it mean to "prohibit" something?

• To allow it

• To not allow it

• To improve it

• To consider it

Weather forecasts can be ________; it might rain when the forecast says it will be fine.

• unreliable

• predictable

• accurate

• consistent

Air conditioners release ________ heat outside. This raises outdoor temperatures.

• excess

• minimal

• cool

• treated