Unit 2

How has burning fossil fuels MOST caused a decline to the quality of air that people breathe?

• by adding particle pollution

• by creating a hole in the ozone layer

• by causing acid precipitation to fall

• by increasing the levels of carbon dioxide

Which is most likely an environmental consequence of transporting large amounts of oil on boats?

• The odor disturbs the fish populations below.

• The sounds disrupt the calls of nearby seabird populations.

• A spill would have short and long-term effects on marine organisms.

• A large amount of energy is required to steer the boat against ocean currents.

Which statement BEST explains why coal is used to generate electricity despite the amount of pollution produced by burning coal?

• Compared to other fuels, coal produces more energy per kilogram

• Compared to other fuels, coal is relatively cheap and plentiful.

• Coal burns without producing greenhouse gases.

• Coal is a renewable source of energy.

Which renewable energy source would most likely cause loss of habitat?

• hydroelectric

• geothermal

• nuclear

• biomass

When building a dam for a hydroelectric power plant, which best describes a possible negative effect on the environment?

• flooding

• air pollution

• radioactive waste

Which is the most negative consequence of obtaining coal to use for fuel?

• land destruction

• water pollution

• air pollution

• forest fires

Which form of energy production creates the most air pollution?

• coal

• hydroelectric

• nuclear

• wind

A potential negative impact of building a dam on a river is that the dam

• prevents sediment from flowing downstream.

• increases the amount of water available to farms.

• prevents seasonal downstream flooding.

• increases the rate of water loss from a lake.

Wind is becoming more common as a source of energy. Wind farms require large open spaces for the wind turbines. A negative consequence of this technology is wind turbines

• are an inexpensive source of energy.

• cause little pollution to the environment.

• may hurt the flying animals in the area

• are a renewable source of energy.

Which resource when used causes the MOST pollution?

• solar

• coal

• wind

• water