Teeth: During 1) the sixteenth century, 2) sugar started to become popular. What is the purpose of the text? Choose from categories 1-5 in Exercise 1. ? As a result some rare species of animals, birds, fish and plants disappear forever, a number of rivers and lakes dry up. The pollution of air and the world's 3. What pollutes the air we breathe? 4. What is the result of the pollution the atmosphere? 5. Why is environmental protection of a universal concern? Carbohydrates are mainly used by the body as fuel. Digestion breaks them into

suggestion:

the sugar sink in roots is the result of