10 percent of energy is passed from one tropic level to the next. While the other 90 percent of energy is lost to heat.
The answer to this question is in fact the Lungs.
Answer: Carbs high in Resistant Starch speed up
Explanation:
your body's other natural fat burners. As Resistant Starch moves though your digestive system, it releases fatty acids that encourage fat burning.
Controlled population growth.
Explanation:
US is a highly developed country and it has expansive infrastructure and highly mechanized agricultural equipments. So first option is not a choice. Second, access to chemical fertilizers and pesticides in a country with such advanced agriculture infrastructure is very easy. Third US is well known for using GM crops.
US does not have a controlled population growth because if not the birth rate then migration of people to US is a major concern for that country. Thus, this will be a correct choice for the given question.
