Close to 30% of all food humans eat in North America is produced from plants pollinated by bees. This equates to $16 billion in the US alone. Besides the food we eat, bees pollinate crops that our cattle feed on, making them very important to the meat and dairy industries (GreenDeen, 2010).
References:
GreenDeen online: available at:
http://greendeen.wordpress.com/2010/05/06/%E2%80%9Cno-bees-no-honey-no-work-no-money%E2%80%9D/
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