Quiz: How much do you know about San Francisco's ambitious composting plans?
by Staff
San Francisco has the most ambitious composting plan of any other U.S. city. Take our quiz to learn what San Francisco is doing and how it may inspire you to start your own composting project.

Which of the following is a compostable material?

  • food
  • plastic
  • aluminum

What is composting?

  • breaking down organic waste
  • assembling trash into one place
  • disposing of all trash in only one manner

What is another name for mature compost?

  • humus
  • urea
  • slag

From 1988 to 2000, how much has the U.S. composting industry increased?

  • doubled
  • tripled
  • quadrupled

With commercial composting, how long may it take to break down the organic material?

  • days
  • weeks
  • years

What is the use of the end product of composting?

  • sold
  • buried
  • burned

How are vineyards involved in the composting process?

  • purchase fertilizer
  • oppose composting
  • refuse to put out organic garbage

What U.S. city composts the most?

  • Seattle, Wash.
  • Portland, Ore.
  • San Francisco, Calif.

How much garbage is collected every day in San Francisco?

  • 100 tons
  • 200 tons
  • 300 tons

What is the name of the mayor who spearheaded San Francisco's ambitious environmental plan?

  • Gavin Newsom
  • Rudy Giuliani
  • Edward Koch

What type of community outreach is being done in San Francisco?

  • inform new residents about the city's environmental plan
  • inform residents about the city's parking restrictions
  • inform residents about snow days

Which city is the runner-up composter in America?

  • Boston, Mass.
  • Portland, Ore.
  • Seattle, Wash.

What does Boston plan to do with the gas that escapes from the breakdown of organic waste?

  • power homes
  • power cars
  • power barbecue grills

Where will Boston decompose its organic waste?

  • indoors
  • outdoors
  • on rooftops

Which of the following is NOT a green activity?

  • carpooling
  • planting trees
  • pouring chemicals down a sink