Answer:
B)
Explanation: Insulin is what keeps your blood sugar lower and sends signal when it needs glucose
Explanation:
The motion of atoms and molecules produces a form of energy that is present in all matter, called heat or thermal energy. ... Energy can take many forms, and from one form to another, it can alter. Many different energy forms can be transformed into heat energy
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.