Bok choy (from the Cantonese, literally meaning "white vegetable"; also spelled "pak choi", "bok choi", and "pak choy"). In the UK and South Africa, the term "pak choi" is used. Less commonly, the descriptive English names "Chinese chard", "Chinese mustard", "celery mustard", and "spoon cabbage" are also employed. In Australia, the New South Wales Department of Primary Industries has redefined many transcribed names to refer to specific cultivars. In addition, they have introduced the word "buk choy" to refer to a specific kind of cabbage distinct from "pak choy". In China, the majority of Chinese speak Mandarin (about 955 million people), and
Vegetable oils as alternative energy bio-diesel is that it can tolerate low rainfall (as little as 250 ml per year), far below what most food-crops require, thus reducing yet more their potential to compete. Some species of algae contain as much as 50% vegetable oil. Algae have very high growth rates compared to plants normally used to produce vegetable oil. Potentially algae could produce much more oil per area of land than current farming methods. So producing vegetable oil this way should result in less deforestation and less competition for food production land. One expert wrote: "As demonstrated here, microalgal biodiesel is technically feasible. It