1.
You're preparing fish for dinner tonight. Which one of these choices is the least environmentally friendly?
Correct Answer
B. Farmed Atlantic salmon
Explanation
The next time you're at the supermarket, choose fish that is caught and farmed responsibly and you could help protect marine ecosystems. Farmed Atlantic salmon have been labeled an Eco Worst Choice by the Environmental Defense Fund because salmon farms are a collecting tank for feces and chemicals that pollute waters. Visit the Seafood Selector guide to find more eco-friendly seafood choices.
2.
You can go green and slash your heating and cooling bills by doing all of these except:
Correct Answer
B. Adding a bounty of rock to the south side of your yard
Explanation
Unshaded rock, cement, and asphalt landscaping can radiate heat and raise the temperatures around your house. Instead, plant trees, vines, and shrubs to promote greenery and cut your energy bills. Just three deciduous trees on the south and west sides can have a cooling effect in summer, and a warming effect in winter. Also, evergreen trees on the north side of your house act as windbreakers in the winter and will help to lower your heating bills. Visit the U.S. Department of Energy website to find out more about landscaping for energy-efficiency.
3.
Which of these small changes can go a long way toward preventing air pollution?
Correct Answer
D. All of the above
Explanation
Paints, dry cleaning solvents, and gas, all contain toxic air pollutants like volatile organic compounds (VOCs) which when released into the air can have hazardous effects on your health and environment. Some ways to reduce air pollution include: choosing water-based paints with lower VOCs, making sure to recycle or reuse any leftover paint (all paint contains hazardous substances and should be handled carefully), and limiting your dry cleaning. Also, refueling after dark helps reduce the chance of VOCs combining with sunlight to create ground-level ozone.
4.
You're planning to barbecue. What is the environmentally best way to grill?
Correct Answer
B. Gas grill in the backyard
Explanation
Natural gas is the cleanest way to grill and it beats charcoal and wood, which produce nasty soot particles that contaminate the air. Plus, gas grills are more energy-efficient than your electric grill or indoor oven.
5.
Recently, you made the energy-smart move to switch from a desktop to a laptop. What would an Eco Hero do with the old PC?
Correct Answer
A. Donate it
Explanation
A new kind of waste is threatening to clutter our landfills nowadays and it's called E-waste. Computers are made of several toxic elements, like lead, mercury, plastics, and glass, that can be hazardous to the environment. One solution to this problem is to recycle your computer at a local recycling facility. But why recycle when you can donate to a program that can refurbish your computer for someone in need? Find a program you'd like to donate to and help reboot the environment!
6.
Which uses less water, washing a full load of dishes by hand, or in the dishwasher?
Correct Answer
B. Dishwasher
Explanation
Handwashing dishes can use up to 50 percent more water than a water-saving, energy-efficient dishwasher. However, dishwashers made before 1994 use more water than current models. Look for units with the Energy Star rating.
7.
What type of supermarket bag is more ecofriendly, paper or plastic?
Correct Answer
C. Neither
Explanation
Manufacturing and disposing of both paper and plastic bags harms the environment. Bring your own reuseable bags instead.
8.
Approximately how much of global electricity output is produced from renewable sources?
Correct Answer
C. 8 percent
Explanation
Only about 8 percent of global energy comes from renewable. The remaining 92 percent comes from nonrenewable sources like oil, coal, and natural gas.
9.
About how much money do you save by replacing a single incandescent light bulb with a compact fluorescent light (over the life of the bulb)?
Correct Answer
D. $30
Explanation
According to the U.S. Environmental Protection Agency, CFLs use 2/3 less energy than standard incandescent bulbs and last up to 10 times longer. Replacing a 60-watt incandescent with a 13-watt CFL will save about $30 in energy costs over the life of the bulb.
10.
True or false? Hybrid cars are slower and less safe than conventional cars.
Correct Answer
B. False
Explanation
Hybrid cars perform on par with or better than conventional cars in driveability and safety testing.
11.
Dropping the thermostat from 70 to 68 degrees Fahrenheit saves you about how much on your heating costs?
Correct Answer
C. 10 percent
Explanation
Each degree you drop the thermostat during winter saves about 5 percent on your heating bill. For air conditioning, set the thermostat to 78 degrees Fahrenheit or higher.