Unit 5 Review

Scientists determine current climate conditions by

• making direct measurements.
• creating computer models.
• examining ice cores.
• using proxy indicators.

As a result of global warming, some plant species in the mountains of California have

• shifted their locations to higher into the mountains.
• developed shorter root systems.
• increased the amount of area they cover.
• become extinct.

What is the biggest danger posed by global warming to people living in coastal areas?

• increased precipitation
• increased acidity of sea water
• lack of carbon dioxide in the atmosphere
• rising sea level

Which action can reduce the greenhouse gas emissions caused by driving?

• taking more trips by car each day
• driving gasoline-powered automobiles
• using public transportation
• living farther from the workplace

How can the planting of new trees help reduce climate change?

• trees help create breezes
• trees release moisture that cools the atmosphere
• trees take in carbon dioxide from the atmosphere during photosynthesis
• trees block the release of greenhouse gases from soil

Gases such as water vapor and carbon dioxide that trap heat near Earth are known as

• global gases.
• greenhouse gases.
• proxy gases.
• offset gases.

Factory A is allowed to release 100 units of carbon dioxide, but it only needs to release 75 units, so it plans to sell its 25 extra allowances to Factory B. What type of program does this demonstrate?

• carbon footprint
• carbon sequestration
• cap-and-trade
• Kyoto Protocol

The energy of motion is

• potential energy
• kinetic energy
• chemical energy
• electrical energy

When you plug your cell phone into an electrical outlet to recharge it, you are using energy for

• transportation.
• industry.
• residential use.
• commercial use.

If fossil fuels continue to be used at their current rate, which will probably be used up first?

• coal
• oil
• natural gas
• methane hydrate