The titular head of a nation as distinct from the head of the government.
A hypothesis is a prediction drawn from a theory.
Answer:
The response is Option D. New grain crops developed in the Green Revolution is NOT something that contributed to worldwide population growth at that time.
Explanation:
The Green Revolution refers to a push towards technological advancement and agriculturally engineered outputs like high-yielding varieties and crops in the 1950s and 1960s. It was particularly impactful in developing countries where there had yet to be much industrialization or mechanization of food production. Advances in irrigation and the use of chemical fertilizers also helped to increase food production in these areas in the 1950s and 1960s. Research institutes studying specific staple crops were established like the International Rice Research Institute (IRRI) in the Philippines in 1960.