9781422274903

CHAPTER 1

YOUR FUTURE CAREER

THE ESSENTIAL INGREDIENTS OF LIFE

An abundant food source and a stable supply of water are the twomost important ingredients for life on Earth. Many of us, however, do not stop to think about the source of our food. Food is defined as any substance that is consumed in order to provide our bodies with nutritional support. Almost all food that humans eat comes from plants or animals. However, most people do not raise and harvest crops, nor do they raise any animals besides their pets. Some people have gardens, but very few would know how to produce enough food in their garden to live on if they were no longer able to buy groceries at a supermarket or dine out at a restaurant.

Your Future Career 7