Onions are biennials; their life cycle is two years long.

VOA: special.2011.06.28

And so she wants to have a visual representation of life's cycle."

VOA: special.2011.06.15

The independent group certifies products and services as environmentally friendly through a life-cycle evaluation - looking at the raw materials and the manufacturing process, transportation and recycling of old products.

VOA: standard.2009.03.30