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.
Answer: Stratified random sampling
Explanation:
In stratified random sampling the population of choice is partitioned into subgroups. Then the samples for study are selected randomly from the subgroups.
The given situation is the example of stratified random sampling this is because of the fact that the population is divided into subgroups on the basis of the social class and age. Then the voters were randomly selected from each subgroup.
Answer:a. increased; remained almost unchanged.
Explanation:
