By what they were born into doing like there family does.
Answer:
Two
Explanation:
Most foods came from the first trophic level (cereal, bread, onion, pesto, pizza dough); though some came from the second trophic level (milk, cheese, butter on bread). So, your eating from the first one and the second one.
Answer:
The answer is creating new materials!
Answer:
Explanation:
Compared to countries with economies in transition, Developed market economy countries have a higher rate of obesity.
