HOW STUFF WORKS
QUIZZES

FOLLOW US
The Sea of Green: How much do you know about cannabis cultivation?
by Staff
Although California led the way on legalizing medicinal marijuana, it isn't the only state that permits patients to purchase cannabis cures for ails. Think you know the ins and outs of America's other green industry? Take this medical marijuana quiz and find out.

California legalized medical marijuana in what year?

  • 1976
  • 1986
  • 1996

As of November 2011, medical marijuana possession is legal in how many states?

  • 10
  • 13
  • 16

In which of the following states is medical marijuana legalized?

  • Arizona
  • Illinois
  • New Hampshire

True or false: Individual counties in California can establish their own marijuana regulations.

  • true
  • false

What's the most common strain of cannabis?

  • Cannabis sativa
  • Cannabis indica
  • Cannabis ruderalis

Cannabis is classified as which type of plant?

  • semiannual
  • annual
  • biannual

True or false: Only male cannabis plants produce THC-containing buds.

  • true
  • false

Which of the following plant-growing elements does hydroponics eliminate?

  • water
  • soil
  • potassium

In 2005, the U.S. Supreme Court ruled that the federal government could do what regarding marijuana?

  • criminalize it in all states
  • criminalize it in states without medical marijuana laws
  • legalize it

In 2011, a Gallup poll found that what percentage of the American public favors marijuana legalization?

  • 15 percent
  • 30 percent
  • 50 percent

In 2011, how many patients were eligible to receive medical marijuana, according to state laws?

  • 240,000
  • 2.4 million
  • 24 million

During their two-month growing phase, cannabis plants require 100 percent of what?

  • humidity
  • carbon dioxide
  • light

As of 2009, the federal government provided medicinal marijuana to how many experimental patients?

  • 4
  • 40
  • 400

Medicinal marijuana is used to treat the symptoms of which of the following conditions?

  • arthritis
  • heart disease
  • Alzheimer's disease

Cannabis plants require 12 hours of light and 12 hours of darkness during which growth phase?

  • germination
  • vegetative
  • flowering

Which of the following isn't a key element for growing medical marijuana?

  • light
  • oxygen
  • heat

Which aspect of the medicinal marijuana industry isn't legally protected?

  • sale of marijuana
  • limited growth of marijuana
  • transport of marijuana

What's the cannabis cultivation slang, borrowed from a Beatles song, for keeping three sets of plants in continual harvest?

  • Yellow Submarine
  • Sea of Green
  • Strawberry Fields Forever

True or false: The aeroponics growing method requires no water.

  • true
  • false

What's the estimated value of the medicinal marijuana grown in the United States in 2011?

  • $100.7 million
  • $1.7 billion
  • $10.7 billion