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How much do you know about marijuana?

Tony Avelar / The Christian Science Monitor

By early 2014, some 20 US states and the District of Columbia had legalized the use of marijuana for medical purposes. In Nov. 2012, voters in Washington and Colorado passed initiatives to make their states the first in the country to allow recreational use of the drug. But under federal law, the sale of cannabis remains illegal. And the US Food and Drug Administration states that marijuana has "no currently accepted medical use in treatment in the United States." How much do you know about marijuana? Take our quiz and find out:

- Staff

1. Today, marijuana grows all over the world, but where is the cannabis plant found indigenously?

The presence of cannabis seeds charred more than 5,000 years ago at an ancient burial site in present-day Romania attests to long human use of the drug. Cannabis was also used by ancient Hindus and Nihang Sikhs of India and Nepal thousands of years ago.

The presence of cannabis seeds charred more than 5,000 years ago at an ancient burial site in present-day Romania attests to long human use of the drug. Cannabis was also used by ancient Hindus and Nihang Sikhs of India and Nepal thousands of years ago.

The presence of cannabis seeds charred more than 5,000 years ago at an ancient burial site in present-day Romania attests to long human use of the drug. Cannabis was also used by ancient Hindus and Nihang Sikhs of India and Nepal thousands of years ago.

The presence of cannabis seeds charred more than 5,000 years ago at an ancient burial site in present-day Romania attests to long human use of the drug. Cannabis was also used by ancient Hindus and Nihang Sikhs of India and Nepal thousands of years ago.

Central and South Asia

 

the Americas

 

Eastern Europe

 

Central Africa

 
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